1.5

Catherine Skibo

Chemistry - University of Southern California

1.5
Quality
4.4
Difficulty
9%
Would Retake
484
Reviews
1.5
Quality
4.4
Difficulty
1.5
Helpful
1.5
Clarity

9%

Would Retake

484

Reviews

Rating Distribution
Official
484 total ratings

5

27

4

8

3

30

2

44

1

375

What Students Say

If it were up to me, I would give her negative stars

CHEM105A - 1.0 rating

didn't wear a seatbelt driving to class bc i wanted to d^e before i got there

CHEM105A - 1.0 rating
Class Info

Online Classes

100%

Attendance Mandatory

98%

Grade Predictor

Your expected effort level

LowHigh

Predicted Grade

A-

95% confidence
Based on 150 grades
Most common grades:
Not sure yet (84)
A (78)
A- (24)
Grade Distribution
A(83)B(14)C(13)D(4)F(4)A-/B+(35)
Based on 254 reported grades
Not sure yet: 84
A: 78
A-: 24
B+: 11
Common Tags
Tough grader (165)
Lots of homework (142)
So many papers (56)
Participation matters (35)
Test heavy (34)
Get ready to read (26)
Beware of pop quizzes (24)
Hilarious (9)
Rating Trend

Stable

+0.08 avg change
Jul
Aug
Sep
Oct
Nov
Dec
Last 6 months
Ratings by Course

CHEM105A

1.8

(160)

CHEM105AB

1.6

(7)

CHEM105B

1.4

(40)

CHEM105AANDB

1.4

(29)

CHEM107

1.3

(17)
+3 more courses
Difficulty by Course

CHEM105

4.9

105

4.9

CHEM105AB

4.7

CHEM107

4.6

105AL

4.6

Reviews (300)
1.0
5.0
CHEM105A
Grade: Not sure yet
Dec 11, 2022

lab manual is a joke and prelab quizzes are written too hard. I did not learn anything useful throughout the lab and they do not align with the lecture

Tough grader
Beware of pop quizzes
Test heavy
1.0
5.0
105
Grade: Not sure yet
Dec 11, 2022

In the past 18 years of school, I have never hated any teacher or professor in my life. it is freaking 105a but why is the lab harder than chem 115. Why? Bc she threw in a bunch of unnecessary workload into the lab and pop quizzes that literally bring your grades down when they have no reflection over your performance in the lab.

Tough grader
Beware of pop quizzes
1.0
5.0
CHEM107
Grade: C
Dec 12, 2022

Get ready to write and read lots with chem manuals. Ive heard lots of chem prof's give students chem notebooks and supplies but Skibo makes it mandatory for students to both pay for manual and notebook. Class was not curved and most exams and labs had averages in the 60-70. Expect very little discretion and tons of work.

Tough grader
Lots of homework
Test heavy
1.0
4.0
CHEM105A
Grade: B+
Dec 16, 2022

Pre labs and post labs are entirely busywork and the lab quizzes fluctuate between being okay and way too difficult or long for the alotted time. The labs are confusing and don't relate to the class topics that well. A lot of figuring stuff out on your own or relying on TA's to guide you through it. Final lab quiz was a joke.

2.0
5.0
CHEM105A
Grade: A
Dec 18, 2022

You don't really interact with Skibo unless you reach out to her through office hours or email. Nonetheless, lab was not a pleasurable experience. She will chastise you for showing the slightest bit of your ankle when she enters the lab with her toes out. She will assign stacks of worksheets that are not possible to complete in 3 hours. Good luck..

So many papers
Test heavy
1.0
5.0
CHEM105A
Dec 20, 2022

Her presence alone just brings the mood down. She's so bitter for no reason. Thank God that I passed so I don't have to see her again. She also forces you to buy her lab manual and probably just sits in her office counting the cash she makes off of it. There is no way out of having her unless you completely change your major so good luck.

Tough grader
Lots of homework
1.0
5.0
CHEM105A
Grade: C
Jan 17, 2023

She wrongfully accused me of cheating on a postlab because my answers matched another student's (duh, there's only one correct answer) and I had to go to SJACS (USC's disciplinary council) to prove I didn't cheat. Awful, bitter woman who is miserable with her life

1.0
5.0
CHEM105A
Grade: Not sure yet
Feb 3, 2023

A lot of homework, including pre-labs and post labs. Never shows up to lab, and all the gradings are done by the TAs. The first time I saw her was when I went to take our final lab exam. Never responds to emails, and we get deducted points on our grade for her lack of instructions. She needs a negative rating ngl... shibal michinnyeon..

Participation matters
Lots of homework
1.0
5.0
CHEM105A
Grade: Not sure yet
Mar 8, 2023

I have learned a lot from doing prelabs, postlabs, and labs (lab quizzes are not helpful) but this class can easily be much better for students if maybe we did a lab every other week and spent the lab time the week "off" doing the pre labs and post labs with the TAs! I wish Skibo would adjust after seeing all these complaints... it's not right

1.0
5.0
CHEM105B
Grade: Not sure yet
Apr 29, 2023

the hardest professor ever. made exams impossible for no reason. no matter how hard I could have studied, it wouldn't have helped me.

Tough grader
Lots of homework
1.0
5.0
CHEM105B
Grade: Not sure yet
May 1, 2023

I know other reviews seem daunting but I'm going to be as straightforward and truthful as possible from 2 semesters of experience. The labs aren't too bad, but they're very tedious. Her instructions aren't the clearest either, but if you get a lab position on campus, her strictness prepares you well. You also never interact with her. You got this!!

Tough grader
1.0
4.0
CHEM105B
Grade: A-
May 7, 2023

DO NOT TAKE!! Skibo is the most unprofessional person I have ever met. They way she speaks to students is like she is a 15 year old trying to spite someone for being mean to her. I expect more from an authoritative figure. She responds to emails weeks or months late and none of the quiz grades were submitted until the last week of the semester.

Tough grader
Lots of homework
1.0
5.0
CHEM105B
Grade: A
May 9, 2023

Postlabs and prelabs every single week. I legitimately spent like 10 hours per week, if not more, on chem lab alone (not including lecture portion). To top it off, pre-lab quizzes every wk. It's a constant grind, and a lot of these labs felt pointless and poorly explained. And that final lab exam was ridiculously difficult.

Lots of homework
So many papers
4.0
2.0
CHEM105A
Grade: A
May 12, 2023
Would take again

I know I'm gonna get hate for this, but Skibo really isn't THAT bad. She does assign a BUNCH of stuff with post labs, but as long as you have good time management, you'll genuinely be fine. Just don't go in with a mindset of hating her and odds are you'll turn out fine. The TAs grade everything and they grade ridiculously easy. Just do your work.

Tough grader
Participation matters
Lots of homework
2.0
3.0
105AL
Grade: A
May 24, 2023

Lab is super tedious, time-consuming, and sometimes difficult, but in all honesty, it's not the worst. This is definitely something you'll just have to brute force your way through. I interacted with Skibo less than 5 times; your TAs will be more important in determining your grade in this class. Most of them are pretty kind and accessible!

Group projects
Lots of homework
2.0
4.0
CHEM105B
Grade: A
Jul 13, 2023

A lot of kindergarten-grade yet super time consuming work. The lab manual that she composed and required us to purchase is abstruse and full of grammar mistakes. Small quizzes every week and a challenging final exam at the end of the semester. Labs are task heavy and you won't leave without three hours of frustration.

Participation matters
Lots of homework
Test heavy
3.0
4.0
CHEM105B
Grade: A
Aug 6, 2023

Lab materials actually make sense and help understand the lecture. Actually okay to talk to but the whole 105 lab system is NOT good. TAs are not that well-trained and LOTS of work for a lab portion of a 4 unit course. Need to carefully prepare for the lab quiz and final so it won't consume a lot of your grade. Study hard.

Participation matters
Lots of homework
Beware of pop quizzes
3.0
4.0
CHEM105AB
Grade: A-
Aug 7, 2023

Skibo isn't as bad as everyone makes it out to be, but she is tough, and the amount of work for the 105A and 105B labs is a lot. The lab exam for both 105A and 105B was difficult, so study very hard for them. Both of them ended up consuming a good portion of points off my grade, but I still ended with an A- in both courses.

1.0
5.0
CHEM105A
Aug 28, 2023

It legit week one and it's already so bad-dismissive, cold, and uncaring.

Participation matters
Lots of homework
So many papers
1.0
5.0
CHEM105A
Grade: Audit/No Grade
Sep 1, 2023

Avoid Dr. Skibo at all costs. She is by far the rudest, most dismissive, least caring faculty member I have ever met. I would expect a much higher hiring standard from this institution, I would think that having basic social skills and the capability to show kindness would be necessary to work at USC, but I guess not.

1.0
4.0
105AL
Grade: Not sure yet
Sep 11, 2023

You rarely interact with Skibo, but it's the TAs that are the real problem. The TAs are improperly trained, and going to office hours won't help you because they have no idea either. What are we all sitting here paying for? If you want to learn nothing for a semester while feeling like ripping your brains out, this is the class for you.

Lots of homework
So many papers
1.0
5.0
CHEM105AANDB
Grade: Not sure yet
Sep 13, 2023

The amount of time you must dedicate to this 0 unit lab on top of lecture is unethical. Stay strong everyone.

1.0
5.0
CHEM105B
Grade: Rather not say
Sep 14, 2023

I'm convinced she wants all depressed and sleep deprived. There is no reason lab should be this much torture.

1.0
5.0
CHEM105A
Grade: Not sure yet
Sep 22, 2023

the actual worst. worst professor ever. worst person ever. she is so unclear with her instructions about everything i want to rip my hair out. does not deserve that PhD what so ever. pls send help

Tough grader
Lots of homework
1.0
5.0
105AL
Grade: Not sure yet
Oct 2, 2023

The TAs and students are literally scared to death of Skibo. That's far from fair. It hasn't been half the semester every grade released thus far I've had to contest with the TA or skibo because they grade straight up incorrectly. ADVOCATE FOR YOUR GRADES.

Tough grader
3.0
3.0
CHEM105AANDB
Grade: A
Oct 8, 2023
Would take again

To be fair, labs are usually tedious, but this was just a little too much. Never interacted with her during my time in 105A/B, so I don't really have anything to say about her. Pre-labs and post-labs are annoying, sometimes not very clear. There is a clear grading criteria, so just go to lab and complete the assignments. Final is painful.

Clear grading criteria
Lots of homework
1.0
4.0
105
Grade: Not sure yet
Oct 20, 2023

Extremely condescending whenever you ask a clarifying question or make a mistake. I have no idea why she would choose to do this job because it's clear she does not care about any student.

1.0
5.0
CHEM105A
Nov 8, 2023

So much work - chem pre-lab, pre-quiz, lab, and post-lab weekly. So draining and frustrating. The lab manual she makes you buy, which she wrote, is not always clear and gets confusing. This lab class was partly why I switched my major to a non-STEM major.

1.0
5.0
CHEM105
Nov 9, 2023

praying for u if u have to take this class. anyone who says "its not that bad" has never had a conversation w her-it is that bad.

Tough grader
So many papers
1.0
5.0
CHEM105A
Grade: Not sure yet
Nov 13, 2023

The amount of work every single week is incredibly draining and can be quite confusing. With the amount of work given, we should be getting extra credit hours, yet we don't. The work given by Dr. Skibo makes me feel like I am actively being weeded out of the class. Absolutely not fair, but you can't avoid her if you're a STEM major or pre-health.

Tough grader
Lots of homework
1.0
4.0
105AL
Grade: Not sure yet
Nov 16, 2023

I have only interacted with Dr. Skibo once over email and it was terrible. She displays no courtesy in her responses. Besides that though, you can go the entire semester without seeing or interacting with her. The real issue is the TAs. The TAs are horrible. They cannot answer even basic questions and often contradict themselves.

1.0
5.0
CHEM105AB
Grade: Not sure yet
Nov 29, 2023

To study for the lab exam I would probably go to extra help and have her or the TA explain what the answers are for the questions asked to be answered in the discussion/conclusion for each experiment!!! Learned this now after finishing 105b. Other than that I have no idea how studying can help because the questions are whack and meant to trick you.

1.0
5.0
CHEM105A
Grade: Not sure yet
Nov 30, 2023

The TAs basically do all the work. I have taken this class for 1 semester and have yet to interact with Skibo in person. The lab manual we are forced to purchase and turn in receipt proof of buying is very poorly written. I spend significantly more time on the lab a week than I do on the lecture. It feels like a completely separate class.

Tough grader
Lots of homework
So many papers
1.0
5.0
CHEM105A
Grade: B
Nov 30, 2023

Unavoidable, Inaccessible, and more work than any upper division I've taken.

Tough grader
Lots of homework
So many papers
1.0
5.0
105AL
Grade: B-
Dec 1, 2023

Rude to everyone including her own TAs. Makes you pay for her lab manual. Gives more work than the actual course itself. Is not helpful whatsoever and instead is often passive aggressive in her responses.

Lots of homework
So many papers
Test heavy
1.0
5.0
CHEM105A
Grade: Not sure yet
Dec 4, 2023

In-person interactions are rare. Comes across as impatient or passive-aggressive. Lab and post-lab work is tedious due to unclear instructions emanating from a typo-ridden and pricey manual. Lab Exam is a calamity. An entirely student-led preparation (unlike Chem lecture), as if to say "good luck!"; questions *designed* to trick you. Oh my days...

Tough grader
Lots of homework
1.0
5.0
CHEM105A
Dec 5, 2023

easily the worst/most difficult class i have ever taken. she is rude, disrespectful, unhelpful, and relies on the TAs to run everything. i have never seen her in person. the lab manual is costly and filled with typos. i spend more time on her lab work than the work for all of my other classes combined. there is also 0 instruction on the assignments

Tough grader
Lots of homework
So many papers
1.0
5.0
CHEM105B
Grade: A
Dec 5, 2023

perhaps the worst experience i've had in my life. i've never met someone so blatantly rude and just truly mean. this class was painfully difficult, the manuals make no sense, the grade sucked, the quizzes were impossible - she wants u to fail and it actually makes her happier when u do

Tough grader
Lots of homework
1.0
5.0
CHEM105A
Grade: Not sure yet
Dec 6, 2023

Literally who hurt her. Instructions are so unclear and when I ask her specifically what she is looking for she just repeats the question back to me. Thanks, skibby cant wait for next semester with you!

Tough grader
Lots of homework
1.0
5.0
105AL
Grade: Not sure yet
Dec 6, 2023

ew crazy lady

1.0
4.0
CHEM105A
Grade: C+
Dec 6, 2023

she's extremely aggressive when you ask a clarifying question and i feel this quality in her shows a lack of empathy for students. very unclear lab manual-- led to confusion in the lab and assignments. if you avoid interacting with her one-on-one, you'll be okay. My lab TA also sucked so that's another bonus!

Tough grader
Lots of homework
1.0
5.0
105AL
Dec 6, 2023

Impolite and Uncaring. Irresponsible and long lab hours. Inconsiderate

Tough grader
Participation matters
So many papers
1.0
5.0
CHEM105A
Grade: Not sure yet
Dec 6, 2023

She doesn't even follow the lab rules herself. why does she get upset at students for removing their lab coat after the expt is over, but walks into the lab room with flip flops, t-shirt, and goggle-less. very passive aggressive in her emails for literally no reason. a gen chem lab should not be this horrible and terrible and bad and no good )):

1.0
5.0
CHEM107
Grade: Not sure yet
Dec 7, 2023

Confused how she gets to be the lab instructor if she isn't capable of putting down reasonable things on lab manual and lab final.

Tough grader
So many papers
Test heavy
1.0
5.0
CHEM105B
Grade: A
Dec 10, 2023

Labs are intimidating at first but you get used to it. Lab manual is vague and directions are unclear. Just hope ur TAs are good.

1.0
5.0
CHEM105B
Dec 11, 2023

If not for lab, I would have finished with an A in the class. Lab is supposed to enhance the class understanding and enjoyment, but Skibo's labs unfortunately do the opposite. It is really time for USC to reassess keeping her as the lab instructor, as she decreases the quality of life at USC for so many students.

Lots of homework
1.0
5.0
105AL
Dec 13, 2023

The lab is more work than the lecture itself, she is passive aggressive when answering questions. The course is not well organized, the lab lectures were not reliable or recent. The lab quizzes and the lab itself can be so unpredictable. Got so lucky to have good TAs, but the grading is and the rubrics are SO vague. This class made me miserable.

Tough grader
Lots of homework
Test heavy
2.0
3.0
CHEM105A
Grade: A-
Dec 14, 2023

Skibo is super intimidating just because everyone dislikes her. If you stay on track, rely on the TAs, and never interact with her, you will have a smooth year. Do not bother going to her to ask about grading rubrics or anything unrelated to chem material, she will be unresponsive. The lab section for chem is A LOT of work but not too difficult.

Tough grader
Test heavy
1.0
5.0
CHEM105A
Grade: A
Dec 14, 2023

By far the worst educator of any type I've ever met. Very unapproachable, lab manual with ambiguous and sometimes incorrect instructions, never answers emails, and had to fight over my grades multiple times bc of unclear directions from her and/or the TAs. Did more work for this lab than my other four lecture classes combined. Good luck everyone.

Tough grader
Lots of homework
Test heavy
1.0
4.0
CHEM105A
Grade: A
Dec 15, 2023

I tried to give Dr. Skibo a chance at the start of the year but from the very first time I met her she was curt at best, rude at worst. The lab section for this course takes up more time than the actual lecture section. Her final exam wasn't hard but it had a lot of trick questions and little partial credit (and no curve). Very dismissive in email.

Tough grader
Beware of pop quizzes
Test heavy
1.0
4.0
CHEM105
Dec 16, 2023

The lab portion of 105a is hell, a constant grind. The post-labs and pre-labs are graded fairly depending on your TA but the quizzes and the final lab quiz are pretty tough.

1.0
4.0
CHEM105B
Grade: A
Dec 17, 2023

Forced buy lab manual (that she wrote). Labs only marginally relate to topics taught in lecture, they mostly mean you have to spend a lot of time on google. Prelabs take excessive amounts of time- postlabs take even longer. She is unresponsive, uncaring, and rude to students, even if you genuinely want to learn. If you can avoid her, do it.

Tough grader
Lots of homework
1.0
5.0
CHEM105B
Grade: B
Dec 21, 2023

Spent 3x more time + effort on lab than lecture. Pre labs and post labs are long and difficult. Skibo refuses to (and doesn't let the TAs) provide any additional help on the manual that she wrote. There isn't enough equipment for everyone, so in lab you are mostly "waiting for your turn." Final is harder than lecture final and tricky.

Tough grader
Lots of homework
Test heavy
1.0
5.0
CHEM105
Jan 6, 2024

Awful. Just plain awful. Inconsiderate, treats students like they are still in high school. Condescending and uncaring. She honestly works overtime to undo everything your TA does to better help you understand the material.

Tough grader
Lots of homework
Test heavy
1.0
4.0
CHEM107
Grade: A
Jan 8, 2024

Her lab manuals ramble on about useless information and her labs are written in such inconsistent manners where most of the time TA's have to make up parts of procedure. The manual also was clearly meant for 105A students and just given to 107 which meant most labs didn't align with lecture. She also sometimes changes lab procedure 2 nights before

2.0
5.0
CHEM105A
Grade: A
Jan 8, 2024

i went to office hrs ONCE and was scarred for life. absolutely no grading rubrics for postlabs. lab quiz was gross, no study materials or support at all. most time consuming class. lab would've tanked my grade if i didn't bust my ass. u can get an A overall - just make sure to do really well in lecture to buffer the unpredictability of lab

1.0
5.0
CHEM105A
Grade: A-
Jan 8, 2024

AVOID AT ALL COST. passive aggressive for no reason from the beginning. Prelabs and postlabs are brutal. forces you to buy HER OWN lab manual (you know shes making bank). Avoid at all cost.

Tough grader
Lots of homework
1.0
4.0
CHEM107
Grade: A-
Jan 8, 2024

Dr. Skibo makes her labs unnecessarily difficult luckily you rarely interact with her.

Tough grader
Get ready to read
1.0
5.0
CHEM105B
Grade: A+
Jan 15, 2024

did very well in the lecture portion but the lab section is tedious and difficult. Almost all the labs take the entire two hours and the lab exam was very impractical but The lab curve was generous. You will do fine in the class as long as you do well in lecture to buffer the lab grade and avoid interacting with Skibo. Go to ta with questions

1.0
5.0
105
Jan 17, 2024

I have seriously never met a more rude person. I email her so kindly asking for help and she is just so rude and unhelpful when responding to emails. truly does not care about anyone. worst professor ever. usc seriously needs to fire her.

Tough grader
1.0
5.0
CHEM105A
Grade: A
Jan 31, 2024

5/5 stars for my TAs Yifan and Archi (use your TAs!) No rubric for the postlabs, and you only see the grading criteria on AFTER your postlab is graded. Sometimes TAs miss things, so fight for every single point you can get. Lab final was hard - you basically have to memorize every single detail for each experiment, but the curve was lenient.

Participation matters
Lots of homework
Lecture heavy
1.0
5.0
CHEM105A
Grade: B+
Feb 1, 2024

I mean this is supposedly to be a lab and lady has got me contemplating whether or not i wanna go to USC anymore, and honestly yall should just fire her cus shes dooming everyone.

Lots of homework
So many papers
Test heavy
1.0
5.0
CHEM105B
Grade: A-
Feb 4, 2024

I think she thinks the only class we take is chem lab. Easily 7 hours of work for pre and post lab each week.

Lots of homework
1.0
5.0
CHEM105A
Grade: Not sure yet
Feb 8, 2024

the worst ever. she makes me want to cry every night from her workload. and the worst part is that it doesnt even make sense no matter how hard you try. not to mention you cant even speak to her or go to OH cause shes so rude

Tough grader
Get ready to read
Lots of homework
3.0
4.0
CHEM105A
Grade: B
Feb 23, 2024

As much as everyone detests this woman, she's not as bad as everyone claims (me thinks). The workload is heavy but most of the TAs sort of know what they're talking about and can help you out. Never had to interact with her, I just meme about her and its funny. Go in with a positive mindset and you'll survive Dr. Skibidi.

Tough grader
Lots of homework
So many papers
1.0
5.0
CHEM105AANDB
Grade: B+
Mar 22, 2024

every negative review here is telling the truth, there's no one here who is more universally hated. lab assignments are graded by TAs and herself, and they'll take away points for the most utterly pedantic reasons imaginable, but they'll never tell you why until the semester is nearly over. genuinely a coarse and fundamentally unlikeable person.

Tough grader
Lots of homework
So many papers
1.0
5.0
CHEM105B
Grade: Not sure yet
Apr 22, 2024

100% the most vile and vicious human being. entirely too much work for a zero-unit course. not to mention, the TAs don't know anything either.

Tough grader
Lots of homework
Test heavy
1.0
5.0
CHEM105AB
Apr 24, 2024

two words: ms. trunchbull.

1.0
5.0
CHEM105AANDB
Grade: B
Apr 24, 2024

ms. trunchbull? yeah, we have a living one right here. my first interaction with her and i know damn well it will be my last. legit went back to my room after and sobbed. i am traumatized.

1.0
5.0
CHEM105AB
Apr 24, 2024

fr the worst. never regrades, MIA during exam week, up-tight.

1.0
5.0
CHEM105A
Apr 25, 2024

AVOID AT ALL COSTS! She is rude and doesn't care about her students. She is unorganized, and her lab grading is very strict. The science lab is supposed to be a cushion for your class grade, but I actually think it brought my grade down. If you avoid her, the class is manageable, but just be prepared to spend long nights doing her assignments.

Tough grader
1.0
5.0
105
Grade: Not sure yet
Apr 25, 2024

I wonder what happened to hurt this woman so bad to the point where she dedicates her life to torturing and belittling students who are eager to learn. USC needs to fire her as soon as possible, she does not enjoy her job and makes it very clear.

Tough grader
Lots of homework
1.0
4.0
CHEM105AB
Grade: A
May 2, 2024

This woman has the pure audacity.

Tough grader
Lots of homework
Beware of pop quizzes
1.0
5.0
CHEM105A
Grade: C+
May 3, 2024

Do not take this class!! I have never been more miserable or regretted taking a class as much as this one. If you don't need this for your major DO NOT take it and if you do switch your major and don't put yourself through this. Truly the worst professor I have ever had at USC. I would rather pledge again than take this class.

Lots of homework
1.0
5.0
CHEM105A
Grade: B
May 5, 2024

Every single review underneath me is not exaggerating in the slightest. nuff said

Tough grader
Lots of homework
So many papers
1.0
5.0
CHEM105B
Grade: A-
May 8, 2024

there was enough said in the reviews. save yourself

Tough grader
Lots of homework
Test heavy
1.0
4.0
CHEM105B
Grade: A-
May 14, 2024

The key is not to interact with Dr. Skibo all semester. She claims to normalize the lab grades but doesn't, and this really screwed me because my TA was an extremely harsh grader. Final lab exam was nigh impossible and had no curve. Studying almost doesn't help because, the average was a D. Do well in lecture, lab will probably drag you down.

Tough grader
Participation matters
Lots of homework
1.0
5.0
105
Grade: B
May 15, 2024

Torture. Skibo's pre-lab and post-lab assignments are tedious and unnecessarily complicated. Her assignments take away from the actual chemistry lecture course. Students and even TAs are afraid of her. This class actually makes you want to drop out. Just look at these reviews... why does USC keep her here? Also, lab exam is a joke so good luck!

Lots of homework
Beware of pop quizzes
1.0
5.0
CHEM105
Grade: A
May 15, 2024

No specific grading critieria, awful lab quizzes, and exams... Good luck guys....

Tough grader
Lots of homework
Hilarious
1.0
4.0
105
Grade: A
May 17, 2024

This ain't been about critics, not about gimmicks, not about who the greatest It's always been about love and hate, now let me say I'm the biggest hater I hate the way that you walk, the way that you talk, I hate the way that you dress

Tough grader
Lots of homework
So many papers
1.0
5.0
CHEM105A
May 19, 2024

This lab scarred me. No, not mentally. PHYSICALLY. I literally have a permanent chemical burn from this lab. Completely mismanaged. USC probably keeps her on to weed out premeds, but ignores that she actively creates hazardous environments for students, is never monitoring the lab (I saw her maybe twice), and does not respond to requests for help.

1.0
5.0
CHEM105A
Grade: A-
May 22, 2024

The reason Hilarious is checked above is because that is what I thought of this lab. A prelab and postlab which each take about 2 hours with labs that take the full 3 hours, there wasn't a time I sat down to do work that I wasn't doing something for this class. It was laughable how many times I wondered why she makes this class so much work.

Lots of homework
Hilarious
So many papers
1.0
5.0
CHEM105B
Grade: A
May 24, 2024

Just pray you get a good TA. You'll become religious because of the amount of praying you'll do trying to manifest a decent grade. This lab will become your life every week. Post Labs are 3-6 hours long, pre labs are 1-2 hours, and the lab protocols don't make sense half the time. Get ready for some 1245% errors.

3.0
4.0
CHEM105B
Grade: A
May 27, 2024

Go to TA office hours, don't go to instructor ones. I went to TA hours and things went fine. 20 dollars required to buy a lab manual, which was hard to understand in some paragraphs but was organized and helped the understanding of lectures. Prelabs and postlabs were a pain but I guess all chem lab require those. Final was hard but she curves.

Group projects
Clear grading criteria
Test heavy
1.0
5.0
CHEM105A
Grade: A
Jun 12, 2024

The worst prof I have ever had. The pre lab quizzes were difficult, labs were tedious, and just pray you get a good TA.

Tough grader
Participation matters
1.0
5.0
CHEM105A
Jun 13, 2024

RMP needs to add a rating of ZERO just for Skibo. It speaks great measures for 200+ people rating you so poorly. She'll yell at you with no hesitation if you're just passing through SGM (not even attending a lab) and you don't have proper PPE. Her emails are insanely passive, and the orientation and lab is a complete joke compared to actual labs.

Tough grader
Lots of homework
Test heavy
1.0
5.0
CHEM105A
Grade: Incomplete
Sep 6, 2024

Whoever hired her needs to be fired along with her. I barely started the semester and she's already so aggressive with her emails, even though I was just asking her to clarify. She's one of those sad old ladies who have no life or husband and is unhappy with her life. Save yourself and don't take this "professor".

Tough grader
1.0
5.0
CHEM105A
Sep 6, 2024

I genuinely hope she sees these reviews and considers retiring. Do better USC...

Tough grader
1.0
4.0
CHEM105B
Sep 7, 2024

Final boss of busy work

3.0
4.0
CHEM105A
Grade: B
Sep 9, 2024

Tough class, but unstuckstudy ai and engaging with the TAs can help. Prepare for pre-lab quizzes and be ready to invest time, but the material is manageable if you stay on top of it.

1.0
5.0
CHEM105A
Grade: Drop/Withdrawal
Sep 11, 2024

Dr. Skibido is a no no, hell no

Tough grader
Participation matters
1.0
5.0
105AL
Grade: Incomplete
Sep 16, 2024

hell naw to the naw naw naw

Inspirational
Caring
Respected
1.0
5.0
CHEM105A
Sep 18, 2024

One of the worst PEOPLE, not even professors, I have ever met in my life. Skibo is the reason America has a doctor shortage. She might be the anti-christ if the anti-christ hated himself and his life.

3.0
2.0
CHEM105A
Grade: A
Sep 19, 2024
Would take again

People over exaggerate how "bad" she is. I do agree that the pre-labs, post-labs and experiments themselves can be vague, and overly tedious at times but that's the extent of how bad she is. Do assignments early and you'll be fine; ask TA's for help. (Realistically you won't ever need to say a word to Skibo).

Lots of homework
1.0
5.0
CHEM105A
Grade: Not sure yet
Sep 20, 2024

This ain't been about critics, not about gimmicks, not about who the greatest It's always been about love and hate, now let me say I'm the biggest hater I hate the way that you walk, the way that you talk, I hate the way that you dress I hate the way that you sneak diss, if I catch flight, it's gon' be direct

Tough grader
Get ready to read
1.0
5.0
CHEM105A
Grade: Not sure yet
Sep 23, 2024

genuinely one of the most confusing classes ever. she makes you purchase a lab manual for 20 dollars that has no clear criteria for the post and pre labs, WHICH BY THE WAY TAKE AT LEAST 3 HOURS EACH. the labs are so disorganized, everyone is scrambling to get it done in the 3 hour time slot. the TA's are very confused as well. FIRE HER USC!!!!!!!!!

Tough grader
Lots of homework
So many papers
1.0
5.0
CHEM105A
Grade: Not sure yet
Sep 25, 2024

Genuinely don't understand how or why she still is a faculty member at USC. Postlabs are especially unclear and it feels like a scavenger hunt trying to figure out what to do and how to do it. She makes this lab tedious and nothing but busy work just for the sake of difficulty. The busy work adds absolutely no value to the class or our learning.

1.0
5.0
CHEM105A
Grade: Not sure yet
Sep 29, 2024

BEWARE! SKIBIDI TOILET HAS NO RIZZ OR A LIFE!!!!! WORST PROFESSOR EVER. If you email her, you will receive the most passive aggressive emails you will ever get. Her emails are confusing and will probably not answer your question. Dr. Skibidi's lab manual is probably the most confusing text I have ever read, making it hard to do the post labs. AVOID

Tough grader
Lots of homework
So many papers
1.0
5.0
CHEM105A
Grade: Not sure yet
Oct 3, 2024

crying rn doing the postlab. will NEVER understand how she is still a professor at usc. please please please do anything u can to avoid taking her. even the freshman honors science program is probably easier than these postlabs. no clear grading criteria, will take off points for the smallest sig fig mistake. i cant do this anymore!!!

Tough grader
Lots of homework
So many papers
1.0
5.0
CHEM107
Grade: Incomplete
Oct 5, 2024

I hate you

1.0
5.0
105AL
Grade: Incomplete
Oct 8, 2024

Dont take, I just want to take this class for credits, and I've worked in research programs for years as a che transfer senior students, but still dont understand why I have so many points off........

Tough grader
Lots of homework
3.0
3.0
CHEM105A
Grade: Not sure yet
Oct 25, 2024

Lab will be tolerable for you as long as y'all do these things: - Read the Lab Manual CLOSELY - Don't skip anything lab-related - Skibo should be your last resource for questions. It's lab mates, then TA's, THEN Skibo. - Always assume your Post-lab is incomplete and needs more details. Wanting a perfect post-lab grade is wishful thinking.

Tough grader
Get ready to read
Lots of homework
1.0
5.0
CHEM105A
Grade: Rather not say
Oct 31, 2024

Constantly challenging people's imaginations on how bad labs can get. Avoid this class if possible.

Tough grader
1.0
5.0
105
Nov 6, 2024

awful awful awful awful awful awful awful awful awful awful awful

1.0
5.0
105AL
Grade: Audit/No Grade
Nov 12, 2024

I transferred to usc and now i want to transfer back

Tough grader
Get ready to read
1.0
5.0
CHEM107
Grade: Incomplete
Nov 13, 2024

I hate you!

Tough grader
Test heavy
1.0
5.0
CHEM105A
Grade: Incomplete
Nov 14, 2024

bad don't do it

Tough grader
Get ready to read
So many papers
1.0
4.0
CHEM105A
Grade: Not sure yet
Nov 15, 2024

DON'T TAKE THIS LAB UNLESS YOU ABSOLUTELY HAVE TO! It makes you work unecessarily hard, concepts are never explained and you are left on your own to figure everything out. You will have to rewrite the entire lab manual as a part of your pre lab assignments which doesn't make any sense and you will be expected to already know everything.

Tough grader
Participation matters
Lots of homework
3.0
3.0
CHEM105A
Grade: Not sure yet
Nov 17, 2024
Would take again

She's fine. The labs aren't that hard, and the TAs do all of the grading anyway. She also posts videos on Brightspace, and if you watch them, they basically tell you how to do every pre and post lab question. The pre-labs only took me an hour or so, and the post labs 2-4 hours. Considering they are basically the only homework in Chem105a, its fine

1.0
5.0
CHEM105A
Grade: Not sure yet
Nov 17, 2024

i don't even know why she insists on a "final lab quiz" on top of everything else that students have to deal with. making the labs extremely work intensive also feels really weird. i don't like anything about this lab. if you have ANY alternative, NEVER take this lab. you will regret it.

Lots of homework
So many papers
2.0
4.0
CHEM105A
Grade: Not sure yet
Nov 18, 2024

Unfortunately, Skibo is pretty much always a requirement for chem students. There's really no way to avoid her. The class is definitely hard, but manageable. The postlabs take up a lot of time each week, so be ready to spend several hours on those. The TAs do all of the work, and you never really see Skibo in the lab.

Lots of homework
So many papers
1.0
5.0
CHEM105A
Grade: B+
Nov 22, 2024

Literally the worst. Never taken a more stressful class, don't know how she's still here. Gives way too much work, is completely unhelpful, and zero understanding when students struggle. It's like she prays on our downfall. Please, if you're taking chemistry, do yourself a favor and take it outside of USC—this class is a nightmare.

Tough grader
So many papers
Test heavy
2.0
3.0
CHEM107
Grade: Not sure yet
Nov 26, 2024

Skibo is bad, but not as bad as everyone says. Yes, her lab manual is confusing but not impossible to understand and follow. Yes, each experiment has pre-lab and post-labs, but that's the only assignments for the class. Pre-labs take around 1-2 hours, and post-labs can take 2-4 hours. Watching her videos on Brightspace makes it easier on you.

1.0
5.0
CHEM105A
Grade: Not sure yet
Nov 27, 2024

okay so honestly i think the prelabs and postlabs are bad but they aren't TERRIBLE. in my opinion the first lab was the worst (so much busy work) it was insane. but in my opinion the worst part is the final lab exam. way way way too much work and too much to memorize. you need to know every single detail about every single lab. i don't like uuuuu!!

Tough grader
Lots of homework
So many papers
1.0
5.0
CHEM105A
Grade: Not sure yet
Nov 27, 2024

I hate you Catherine

Lots of homework
1.0
5.0
CHEM105A
Dec 3, 2024

I absolutely hate Dr. Skibo. She treats her intro students like grad students and grades harshly on things we've never done before. First time doing titrations and she wants us to have an RSD of 0.2% or lower like that's absolutely ridiculous and too much to ask of intro students. She also doesn't give you equations for the weekly quizzes.

Tough grader
Participation matters
Lots of homework
1.0
5.0
CHEM105B
Grade: Not sure yet
Dec 4, 2024

For all the stem majors, I send my condolences to you since you are forced to take gen chem with her. She gives way too much work and half of it doesn't even relate to the topics learned in class. Her lab exams are just laughable too. Why does she expect us to memorize a color wheel. I swear if i hear her say "arbitrary" bro she gotta go. good luck

Tough grader
Participation matters
Lots of homework
5.0
1.0
CHEM105A
Grade: C
Dec 5, 2024
Would take again

I really admire how she brings such passion and care into the chemistry lab, making even the smallest tasks feel meaningful. Her ability to turn something as technical as a lab session into a warm and engaging experience reflects not just her knowledge but also her kindness and dedication. What an angel. :)

1.0
5.0
CHEM105A
Grade: Not sure yet
Dec 5, 2024

WHY DO WE NEED A 0.2% RSD FOR OUR FIRST EVER TITRATION???? IM SORRY IF MY NUMBERS WERE 0.4 ML OFF FROM EACH OTHER!!! WHY HAS THIS WOMAN NOT BEEN FIRED?? SHES ABSOLUTELY TERRIBLE IM SO SORRY TO ANY OTHER PRE MED STUDENTS WHO HAVE TO TAKE HER.

Tough grader
Participation matters
So many papers
1.0
5.0
CHEM105A
Grade: Not sure yet
Dec 5, 2024

Do not take this class(or any Skibo class) at USC if you can. There's so much unnecessary work and there's a lab final at the end of the year even though you have to already take pre-lab quizzes and write postlabs. And everything is way more complicated than it needs to be. Also, the first lab is a lot harder than most of the rest.

Tough grader
Participation matters
Lots of homework
1.0
5.0
CHEM105A
Grade: Not sure yet
Dec 6, 2024

Lets just say if you were to filter out Dr.Skib, that's a lot of precipitate.

Tough grader
Beware of pop quizzes
Lecture heavy
1.0
5.0
CHEM105A
Grade: Not sure yet
Dec 6, 2024

If you ever see the rare sighting of Dr.Skibo, just know you spotted bigfoot.

Tough grader
1.0
5.0
CHEM105A
Grade: A
Dec 6, 2024

she's large and in charge.

Tough grader
Lots of homework
Lecture heavy
2.0
4.0
CHEM105B
Grade: A-
Dec 7, 2024

I probably spent more time doing the post and prelabs than every other class (including lecture chem work) combined. Lab final was absolute bs and the fact that she makes college students buy her own poorly edited lab manual is disgraceful

Tough grader
Lots of homework
Beware of pop quizzes
1.0
5.0
CHEM105A
Grade: Not sure yet
Dec 9, 2024

this class was the majority of my courseload this semester its actually ridiculous my mental health was so wrecked I'm glad its finally over

Tough grader
Get ready to read
Lots of homework
1.0
5.0
CHEM105A
Grade: Not sure yet
Dec 11, 2024

the worst. objectively the worst.

1.0
5.0
CHEM105A
Grade: Not sure yet
Dec 11, 2024

Worst lab instructor ever. Lab exam was hard asf and no one did well. Gives way too many time consuming assignments.

Tough grader
Test heavy
1.0
3.0
CHEM105A
Grade: A
Dec 11, 2024

The actual material that the labs cover isn't hard but the pre labs and post labs take way too long.

1.0
5.0
CHEM105AANDB
Grade: A-
Dec 11, 2024

does not tell you what will be on lab exam. If you need to take chem, you have to take her labs

Tough grader
Test heavy
1.0
5.0
CHEM105A
Grade: Not sure yet
Dec 12, 2024

Worst class ever save yoursef

Tough grader
Participation matters
Lots of homework
2.0
4.0
CHEM105A
Grade: A
Dec 12, 2024

Labs aren't as bad as everyone says they are. Prelab quizzes are pointless, pre/post labs take a long time (graded by TA, not Skibo), lab final exam was fine as long as you studied for it & actually understood the labs. The class takes a lot of effort, so don't recommend if you are not willing to put the work in. A lot of busy work, so be prepared.

Tough grader
Lots of homework
1.0
5.0
CHEM105A
Dec 12, 2024

dr skibidi needs some rizz bc im permanently traumatized from her class.

Tough grader
Lots of homework
So many papers
1.0
5.0
CHEM105
Dec 12, 2024

dr skibidi needs to be flushed down the toilet

1.0
5.0
105
Grade: Not sure yet
Dec 12, 2024

I actually think this class took years off my life. Permanently traumatized. Turn something in one second late, i dare you…

1.0
5.0
CHEM105
Grade: C-
Dec 13, 2024

Terrible. That's all I came here to say.

Tough grader
1.0
5.0
CHEM105A
Grade: A
Dec 13, 2024

pain is just weakness leaving the body

Tough grader
Lots of homework
So many papers
2.0
4.0
CHEM107
Grade: A
Dec 17, 2024

I will not dawg her like everyone else because you never interact with her. The only difficult thing about labs is that the post-labs take an unnecessary amount of time, but if you befriend your TA you will live. With that being said, pre-lab quizzes will be hard and so will the lab final. Good luck.

Tough grader
Participation matters
1.0
5.0
CHEM105A
Grade: Not sure yet
Dec 17, 2024

Ok yes she sucks. Do the post labs with friends because they take like 9 hours. There are pre-lab quizzes so take notes on the background in your pre-labs so you can do well on them(be so specific).She said to study just the experiments for the exam, and then she asked questions that were in the safety manual(which we were not supposed to study).

Tough grader
Lots of homework
Beware of pop quizzes
1.0
5.0
CHEM105A
Grade: A-
Dec 17, 2024

So terrible.

Tough grader
2.0
3.0
105AL
Grade: A
Dec 17, 2024

I did not even interact with her once, just my TA. Grading depends on TA. She is not bad, but not the best with email. Just long prelabs and postlabs at times. Lab final was decent, do not expect to ace it. Overall, just put in the time and stay on top of it and ask your grader for help and its an easy A. Not as difficult as people say it is.

1.0
1.0
CHEM105A
Grade: Not sure yet
Dec 18, 2024

If your average student is the size of a helium atom, Skibo has a radius larger than a Francium atom.

Lots of homework
Beware of pop quizzes
Test heavy
1.0
5.0
CHEM105A
Grade: B-
Dec 18, 2024

I used to love chemistry in high school. I now feel as unenergized as an electron that went from n=100 orbital down to n=0

Tough grader
Beware of pop quizzes
Test heavy
1.0
5.0
CHEM105B
Grade: Not sure yet
Dec 18, 2024

You do not actually interact with Skibo. Its all based on who you get as your TA. one prelab, lab, and postlab every week. prelab (3 hours), lab period (3.5 hours - sometimes you get out early if you hustle), postlab (ungodly amount of time). follow the lab manual and go to office hours. if you dont like your TA, find another TA.

Tough grader
Lots of homework
Beware of pop quizzes
1.0
5.0
CHEM105A
Grade: A
Dec 18, 2024

Catherine? More like the Witch of the West! She makes you buy her own overpriced lab manual, which barely matches the experiments, leaving you confused from day one. Clear instructions? Nonexistent. Post-labs are a guessing game. Ask for help, and she'll hit you with condescension like you're the problem. She's the real OPP for weaving out PREMED!

Tough grader
Get ready to read
Graded by few things
5.0
1.0
CHEM105A
Grade: A+
Dec 18, 2024
Would take again

She's such a great person! So kind! So fair! So loveable! Love this class!!! Chem 105A Lab was TRULY a transformative experience. Fight on!!! .--. .-.. . .- ... . .... . .-.. .--. -- . .-.-.- .. .- -- -... . .. -. --. .... . .-.. -.. .... --- ... - .- --. . .. -. - .... . -... .- ... . -- . -. - --- ..-. ... --. -- .-.-.-

Inspirational
Hilarious
Respected
3.0
4.0
CHEM105A
Grade: A
Dec 20, 2024

I personally didn't have much of an issue with Skibo. Yeah, the class is a lot of work, but once you get through the first couple pre labs and post labs the rest are pretty easy to follow. Your TAs are what will make or break the labs though. Mine were super helpful and great to be around, whereas I've heard others who aren't.

Tough grader
Lots of homework
1.0
4.0
105AL
Grade: A-
Dec 20, 2024

Yikes. That's really all I can say to describe this lab. The pre-lab quizzes sometimes asked you for a random insert on page x of the experiment that wasn't even part of the pre-lab assignment, and on top of that the instructions are confusing. Can't really avoid this class, but use this rating as an expectation of what's to come :/

Tough grader
Get ready to read
Lots of homework
1.0
5.0
CHEM105B
Grade: B+
Dec 20, 2024

This lab has been the bane of my existence for the past four months. Post-labs take HOURS every week. The lab final was harder than the actual lecture exams. I felt like my life revolved around work for chem lab the entire semester. The only thing that made it better were my amazing lab partners and lab TAs. 😇 I have escaped, bye bye Skibo!

Tough grader
Get ready to read
Beware of pop quizzes
1.0
5.0
105
Grade: A
Dec 23, 2024

Your semester will revolve around this lab. Prelabs and postlabs are so time consuming. Lab exam is a joke. Pre lab quizzes will ask things we've never learned. Skibo's office hours are not helpful because she is plain cruel. Dreaded this lab every week and was counting down the days of the semester. Make sure to go to TA office hours!

Tough grader
Lots of homework
1.0
5.0
CHEM105A
Grade: B+
Dec 24, 2024

Dr. Skibo, oh what a tale, Way too strict, we all turn pale. Labs drag on, they're far too long, Post-labs weekly? A workload wrong. TA grades while we despair, Pop quizzes strike, we're unprepared. The final's cruel, a hopeless fight, Dr. Skibo's class steals your night. Final lab exam was a mess. Why is she still here- she isn't the best.

Tough grader
Lots of homework
Beware of pop quizzes
1.0
5.0
CHEM105B
Dec 27, 2024

Lab itself really isn't bad if you have good TA's. She writes her own manual, assigns over 6 hours of work a week, and her lab exam is nearly impossible. Never had the pleasure of speaking to her but heard it's rough.

Lots of homework
Beware of pop quizzes
2.0
4.0
CHEM105AANDB
Grade: A
Jan 6, 2025

oh brother...it kind of is that bad. lab manual is unclear and difficult to decipher more often than not, making it hard to complete both prelabs and postlabs. SOOO time-consuming, spent more time doing work for this lab last year than i ever spent studying for ochem. lab exam "doesn't require memorization" (it does). but you will get through this!

Get ready to read
Lots of homework
2.0
4.0
CHEM107
Grade: A
Jan 6, 2025

Look, Skibo doesn't grade the assignments - the lab instructors do and they tend to be super chill. I barely interacted with Skibo all semester. Yes, the labs are hard, but they're doable. She does make you buy a lab manual, and the pre-lab quizzes and lab final are impossible to study for. But Skibo isn't going to determine your lab grade.

1.0
5.0
105AL
Grade: A
Jan 8, 2025

lab was a confusing mess, you are forced to buy the manual she wrote (for 20$) which has vague and confusing instructions, the lab quizzes are graded by few insignificant details and she expects freshmen to come with sufficient lab skills. at least IB report writing prepared me from the lab reports but the amount of work was insane. best of luck

Tough grader
Beware of pop quizzes
So many papers
1.0
5.0
CHEM105A
Jan 9, 2025

skibo toilet.

Lots of homework
Beware of pop quizzes
1.0
4.0
CHEM105A
Grade: A-
Jan 17, 2025

this class is the reason why im on antidepressants

Tough grader
Get ready to read
Lots of homework
2.0
4.0
CHEM105AANDB
Grade: A
Jan 17, 2025

She is a tough grader and gives a lot of homework but it is doable just don't procrastinate. The grading is highly dependent on the TA's but since she is the only Chem Lab teacher you can't avoid her. Overall it's manageable just don't make her dislike you.

Tough grader
Lots of homework
So many papers
1.0
5.0
CHEM105A
Grade: Not sure yet
Jan 18, 2025

usc PLEASE fire her.

1.0
5.0
CHEM105A
Grade: B+
Jan 18, 2025

I give her 1 because that's the lowest it goes. These 5 stars are definitely trolls or her alts. I will literally do jail time than stand in the same room as her. Idk how she's still allowed to work here. Part of me almost thinks it's an act to be tough with first years. If you take this class despite warnings, you must be clinically insane.

Tough grader
Beware of pop quizzes
1.0
5.0
CHEM107
Grade: A
Jan 22, 2025

She does not care about students and let you buy her "lab manual" which is $22. If you can avoid her, please do that so. She's MEAN. I wonder why there are no 0 to rate.

1.0
5.0
CHEM105B
Grade: Incomplete
Jan 23, 2025

I am doing your pre lab rn

Tough grader
1.0
5.0
105
Grade: A
Jan 23, 2025

I started taking antidepressants because of this class last semester

Tough grader
Lots of homework
1.0
5.0
105
Grade: A-
Jan 30, 2025

i still have nightmares of her

Tough grader
Lots of homework
Beware of pop quizzes
1.0
5.0
CHEM105A
Grade: Not sure yet
Feb 5, 2025

She is one of the worst lab managers here. You will spend hours outside of class on her work. Good luck if you have to take her…

Tough grader
1.0
5.0
CHEM105A
Grade: B
Feb 7, 2025

Skibo definitely makes chemistry a nightmare. Between several day pre and post labs, rushed unclear experiments, and the dreaded $20 lab manual, she really takes the crown as the worst professor at USC. Worst of all is needing help from her (because of her cheap, cashgrab manual), as she is ready to slap a "pay more attention" bandaid. Fire Skibo!!

Tough grader
Lots of homework
So many papers
1.0
5.0
CHEM105A
Grade: Not sure yet
Feb 10, 2025

heavy workload on the pre-lab and post-lab. I spent most of my time on her assignments that are very unclear. DONT take her class if you can. she is a nightmare... she even gave us assignments due right before a midterm like do we not need to study for it??

Tough grader
Participation matters
Lots of homework
1.0
5.0
CHEM105A
Grade: A-
Feb 11, 2025

Skibo is obviously a weed out prof, but you never actually see/interact with her. Teacher aides do everything, but she assigns the work. Her lab manual she makes you buy (from her) is poorly written with errors, and there is less teaching and more figuring things out yourself. Everything is more complicated than it should be.

Lots of homework
1.0
5.0
105AL
Grade: Not sure yet
Feb 12, 2025

Genuinely what she does is inhumane. No basic general chemistry class should have SO MUCH WORK to the point where you have no time to actually study for the lecture exams and spend all time outside of class doing homework that makes zero sense. I hope she pays for this in the afterlife.

Tough grader
Lots of homework
So many papers
1.0
5.0
CHEM105A
Feb 13, 2025

horrible. makes everyone's life hard for no reason. miserable.

Tough grader
3.0
4.0
105AL
Grade: Not sure yet
Feb 13, 2025
Would take again

Lots of work, but it's all doable.

Participation matters
Lots of homework
So many papers
1.0
5.0
105
Grade: Not sure yet
Feb 14, 2025

SO MEAN. run as far as you can. Doesnt care about humans. Horrible.

1.0
5.0
CHEM105
Mar 4, 2025

Terrible lab manager.. no wonder UCLA fired her. Her lab assignments make me want to dissolve in a pot of hydrochloric acid because of how she makes my life a living hell

Tough grader
Test heavy
2.0
5.0
CHEM107
Grade: A
Apr 3, 2025

Postlabs are so long & take forever. When you ask for help she's just rude. Lab final is hard but curved.

Tough grader
Lots of homework
1.0
5.0
CHEM105
Apr 7, 2025

i get why she's the worst

Tough grader
3.0
3.0
CHEM105B
Grade: B+
Apr 7, 2025

ummm... she isnt even that bad fr. I think everyone's dramatic you quite literally don't see her. and if you did bad in hr course its just cause ur TA sucks, so don't blame her. she's aight. her lab manuals pretty boring in my opinion and could be like more engaging but that's all tbh.

Participation matters
1.0
5.0
105
Grade: Rather not say
Apr 9, 2025

A masterclass in how not to teach. Emotionally volatile, intellectually petty, and grades like she's avenging something. Lectures feel like scripted punishment, gaslighting is constant, and empathy is nonexistent. Perfect for reality TV. Academia deserves better. So do humanity.

1.0
5.0
CHEM105AANDB
Grade: A
Apr 16, 2025

If you weren't religious before, well pick a religion and start praying.

Tough grader
1.0
5.0
CHEM105AANDB
Apr 26, 2025

Thanking god I never have to take another chem lab with her

Tough grader
Get ready to read
1.0
5.0
CHEM105A
Grade: Not sure yet
Apr 29, 2025

shoutout to my TAs for being such g's cus without them idk what id do. with that being said, PRAY you get chill TAs or else this lab will be hell. usc needs to fire skibo.

1.0
5.0
CHEM105A
Grade: Not sure yet
Apr 30, 2025

I don't even know how she still works at USC. There's not one good thing to say about her, good luck.

Tough grader
2.0
5.0
CHEM105AANDB
Grade: Rather not say
May 1, 2025

After 2 semester of Skibo I feel like I survived hell She is bad but you barely interact with her and all grading is done by TAs so pray you get good ones and if you dont then switch Makes you pay around $20 for lab manual that does not make sense and has vague procedures Lab will take around 3 hours Dont even study for the lab exam its impossible

Get ready to read
Lots of homework
1.0
5.0
CHEM105AANDB
Grade: Not sure yet
May 1, 2025

I hope she has children or something because she needs a different outlet

Tough grader
Lots of homework
Test heavy
1.0
5.0
105AL
Grade: Not sure yet
May 1, 2025

just don't. Whoever has to take Chem 105 A and B... I'm sorry.

Tough grader
1.0
5.0
105
May 1, 2025

Why would you be a professor if you hate human interaction? She needs has less emotional intelligence than a 3rd grader.

1.0
4.0
CHEM105B
Grade: A-
May 1, 2025

An enigmatic character...

1.0
4.0
CHEM105B
Grade: A
May 2, 2025

Needs personality transplant

1.0
5.0
CHEM105AANDB
Grade: A-
May 2, 2025

The worst of them all; start praying to Bohr, Afbau, Pauling, Avogadro, Hess and all the other chemistry gods. She works you to death since your first day. She is more aggressive with her grading then how Cl steals Na's last valence electron. She made me want to make the [CN-] in my body > 0.

Tough grader
So many papers
Lecture heavy
1.0
5.0
CHEM105AANDB
Grade: Not sure yet
May 2, 2025

No, avoid at all costs. Her rating is this low for a reason. Pointless studying for the lab exam, it's near impossible.

Tough grader
Lots of homework
1.0
5.0
105
Grade: A
May 2, 2025

just don't

Tough grader
Get ready to read
Participation matters
3.0
2.0
CHEM105A
Grade: Not sure yet
May 2, 2025
Would take again

Honestly, she's not that bad. Skibo responds to emails very quickly (usually within a day). The lab manual / her Brightspace layout takes a while to get used to, but all the experiments, error calculations, etc. are laid out clearly. Pre-labs and post-lab instructions are unclear, but fairly easy. Not good, not bad, just meh.

Lots of homework
Test heavy
Accessible outside class
1.0
5.0
CHEM105AANDB
Grade: F
May 4, 2025

Catherine Chibo.

Hilarious
Caring
Respected
1.0
1.0
CHEM105AANDB
Grade: F
May 4, 2025

Chibo Skibo

Tough grader
Get ready to read
So many papers
1.0
5.0
CHEM105AANDB
Grade: D+
May 4, 2025

Lwk i'd rather take the hardest class in USC and fail 20 times than take another lab with her again

Tough grader
Get ready to read
Lots of homework
1.0
5.0
CHEM105AANDB
Grade: C
May 4, 2025

I'd rather transfer to the University of Punjab

Tough grader
Get ready to read
Graded by few things
1.0
5.0
CHEM105AANDB
Grade: B
May 4, 2025

I'm boutta switch my major to communications after this one

Tough grader
Get ready to read
Lecture heavy
1.0
5.0
CHEM105B
Grade: A
May 4, 2025

all the ratings are valid

Tough grader
Get ready to read
Lecture heavy
1.0
5.0
105
Grade: Not sure yet
May 5, 2025

She for sure has some sort of fetish for making things harder and annoying for college students. You can't avoid her, so just hope she gets fired soon or tank it.

1.0
4.0
CHEM105AANDB
Grade: Not sure yet
May 6, 2025

I don't like her Who does lab finals like that?

4.0
3.0
CHEM105AANDB
Grade: A
May 6, 2025

People like to exaggerate and look for things wrong with her. A lot of busy work but, honestly, pretty standard for a lower division chemistry lab. You will probably interact with her less than 10 times before you graduate unless you're going out of your way to look for her.

1.0
5.0
CHEM105A
Grade: Not sure yet
May 7, 2025

didn't wear a seatbelt driving to class bc i wanted to d^e before i got there

Tough grader
Group projects
Lots of homework
1.0
5.0
CHEM105A
Grade: Not sure yet
May 7, 2025

makes everyone pay outta pocket for her useless ahh lab manual thats riddled with mistakes and worded so poorly that sometimes not even my TAs know wtf is going on. like girl if youre gonna require everyone else to be flawless, then you gotta live up to your own standard

Tough grader
Beware of pop quizzes
Test heavy
1.0
5.0
CHEM105AANDB
Grade: A
May 7, 2025

Every lab was a struggle to resist the urge to create a buffer in my stomach, hate her.

Tough grader
1.0
5.0
CHEM105AANDB
Grade: Not sure yet
May 7, 2025

Basically failed everyone for the lab final again

Tough grader
Lots of homework
Graded by few things
1.0
5.0
105AL
May 7, 2025

Please rot

Tough grader
1.0
5.0
CHEM105
Grade: Not sure yet
May 8, 2025

made my life miserable, ruined my semester, destroyed my love for chemistry. The chem lab final was really easy though (compared to IB chem mcqs), as long as you read the lab manual carefully you're bound to get over 90%.

Tough grader
Lots of homework
1.0
5.0
CHEM105B
Grade: A-
May 9, 2025

Like the chem classes here so poorly structured. The lab portion is more heavily weighted in comparison to everything else. Skibo basically controls ur grade for the lab section bc ur bound to fail the lab final and minute points are deducted from pre and postlabs and the lab quizzes making it hard for u from getting an A since u need a 93%.

Tough grader
Lots of homework
Graded by few things
1.0
5.0
105
Grade: Not sure yet
May 9, 2025

Almost everybody fails the lab final and most people get around a 50% on it so it is an automatic loss of 20 or so points making it hard to get a good grade in the class. Not only that, if you have Broyer ur also screwed bc her tests are extremely hard to get good grades on and Skibo on top of that just makes it really hard to do well in the class.

Tough grader
Get ready to read
Lots of homework
2.0
4.0
CHEM105B
Grade: Not sure yet
May 9, 2025

Honestly, lab takes forever, it sucks, and you feel like you lose hours per week on it, but its not too hard to get a decent grade. They do not grade lab results specifically, just your ability to use the results and justify errors. Good weeder class, and glad I am done with it.

2.0
3.0
CHEM105AANDB
Grade: A
May 11, 2025

People complain about Skibo too much. She is passive aggressive but unless you seek her out you will likely never speak to her. Pre/post/labs are tedious - just do them early (you're given a week and the TA's only care for the safety table/questions). You can BS the post-labs as well as long as you justify it with an explanation in the discussion.

Get ready to read
Participation matters
Lots of homework
1.0
5.0
CHEM105B
Grade: C
May 13, 2025

She is the reason that the chemistry department gets a bad reputation. The postlabs take hours of work for no reason at all. You put in more time on the postlabs than studying for the lecture. S She walks around labs, and everyone is scared of her. Then, the final lab quiz is the hardest test I've ever taken. Took my grade from a high A- to a B+

Tough grader
Participation matters
Lots of homework
1.0
5.0
CHEM105A
Grade: A-
May 15, 2025

INSANE. I can't, not just skibo, everyone, EVERYONE including the TAs are insufferable. Its like they have to adpot a certain mindset before working in the Chem department.

Tough grader
Lots of homework
Graded by few things
1.0
5.0
CHEM105AANDB
Grade: A
May 16, 2025

It's like being a raging insufferable c u next Tuesday is the requirement for being the gen chem lab coordinator. don't even know how she is still employed. I pay how much a year to be tortured by this monster?

Tough grader
Lots of homework
4.0
4.0
CHEM105B
Grade: A
May 18, 2025

Actually, she is not that bad if you do not interact with her during the whole semester. Just ask TA questions, not her. Postlabs did cost me a lot of time and energy. Follow the instructions on the manual step by step and you will be fine. For the lab final, you have to review each lab very carefully to know the background and mechanism behind.

Tough grader
Lots of homework
Test heavy
2.0
4.0
CHEM105B
Grade: A
May 19, 2025

Interacted with Skibo maybe twice; was helpful n not so bad when contact is limited. Lab manual kind of sucked. Postlabs were abysmal so try to start early and pray for an easy TA for grading. Pre-Lab quizzes were a hit or miss. Ideally know every lab's concepts, procedure, and data analysis for the final but I didn't and still got an A.

3.0
5.0
CHEM105AB
Grade: A-
May 22, 2025

Skibo is honestly fine if you figure out the expectations early. She has always been nice to me, however many cannot say the same. If you hope to get good grades in 105, reach out to your TAs for help as they grade your work. Only major content critique is the lab exam which is very difficult (accept that you will do poorly lol)

1.0
5.0
CHEM105B
Grade: A-
May 24, 2025

i had a party when i knew i never had to take her again. chem 105b just took chem105a and made it 3x worse, but I had great TAs that made it worth it. i dont even have words but good luck. lab exam sucks, postlabs are confusing and will take you hours to decode, labs are a 3 person mess. but life goes on & good luck

1.0
5.0
CHEM105AANDB
Jun 2, 2025

SO MUCH WORK. don't bother studying for the lab final bc everyone fails it anyway

Tough grader
Test heavy
3.0
3.0
CHEM105AANDB
Grade: C+
Jun 16, 2025

She is honestly not too bad. She is somewhat accessible outside of the lab times and is okay to talk to. She does tend to come off as passive aggressive in emails and Brightspace announcements, but when talking to her in person she is fine to talk to. The class is TA dependent, so if you have a good TA you should be fine.

Clear grading criteria
Gives good feedback
Accessible outside class
2.0
3.0
CHEM105A
Jul 31, 2025

Not enjoyable, but it really isn't as bad as people make it out to be. You probably will never interact with Dr. Skibo (just the TAs), and it is otherwise your standard chem lab. The lab manual can be difficult to go through at times, and the pre- and post-labs take a lot of time, though getting a good grade is quite doable. Lenient late penalties.

Participation matters
Group projects
Lots of homework
1.0
5.0
CHEM105A
Grade: A+
Aug 25, 2025

So much work, lab homeworks take hours to finish. Meaningless pre-lab, post-lab, and lab quizzes...

Tough grader
Participation matters
Lots of homework
1.0
5.0
CHEM105A
Sep 2, 2025

very awful teacher, don't take her class

1.0
5.0
CHEM105AANDB
Sep 2, 2025

CHEM 105A and 105B labs had a lot of pointless assignments that felt like busy work. Not only were we forced to purchase a lab manual, but there is so many components to lab. You have to finish the pre-lab assignment, carry out a pre-lab quiz, conduct the lab with detailed notes, finish the post-lab assignment and repeat. Lab finals were difficult.

Tough grader
Participation matters
So many papers
1.0
5.0
CHEM105A
Grade: A-
Sep 12, 2025

H E L P M E

Tough grader
1.0
1.0
CHEM105A
Grade: Rather not say
Sep 18, 2025

Skibo has to be one of the worst thing ever to happen to a pre med student. She doesn't take into account that you have other classes, and will expect you to know stuff that you haven't learned and quiz you on it. So disorganized, emails 11 pm at night what we have to do in lab the next morning. Do not attend if you want to protect ur mental health

Tough grader
Participation matters
1.0
3.0
CHEM105A
Grade: Not sure yet
Sep 18, 2025

don't get yourself a tutor— get yourself a therapist.

Tough grader
Participation matters
Lots of homework
1.0
5.0
CHEM105AANDB
Grade: A
Sep 30, 2025

no no no no

Get ready to read
So many papers
Graded by few things
1.0
4.0
CHEM105B
Grade: Not sure yet
Oct 7, 2025

Post-labs are meaningless busy work, for some reason nearly all the TAs became harsh graders this semester.

Tough grader
Lots of homework
1.0
5.0
105
Grade: B+
Oct 14, 2025

This class made me break up

Inspirational
Hilarious
Caring
1.0
5.0
CHEM105A
Oct 18, 2025

I would bet money if a study were done to compare the rates of depression before and during taking her big chungus class, the rates during her class would be exponentially higher than the ones before. She gets a one star not because she deserves it but because I have to give at least one. If it were up to me, I would give her negative stars.

1.0
5.0
CHEM105A
Grade: C
Oct 20, 2025

This professor questioned my will to live every time I opened up any assignment she gave or the grading rubric that was so poorly stuck to. I had to appeal multiple times for missed points because she was too lazy to do any of the grading herself. This was by far the worst experience I have ever had in a course I've taken and DO NOT RECOMMEND.

Tough grader
1.0
5.0
CHEM105AANDB
Oct 23, 2025

I would consider myself to be a calm and respectful person. Unfortunately, she lacks any sort of moral compass and shows little care for her students and so my proper judgment is out the window. The workload and difficulty quite literally has sent people I know to receive mental health care. Thats all you need to know about this course and her.

Tough grader
1.0
5.0
CHEM107
Grade: Rather not say
Nov 6, 2025

Fυcκ You Skibo. Fυcκ You Skibo. Fυcκ You Skibo. Fυcκ You Skibo. Fυcκ You Skibo. Fυcκ You Skibo. Fυcκ You Skibo.

Tough grader
Lots of homework
So many papers
1.0
5.0
CHEM105
Grade: A
Nov 7, 2025

Booooooo *throws tomato*. Super rude for no reason

1.0
5.0
CHEM105B
Grade: Rather not say
Nov 14, 2025

She has a bunch of trivial rules and once you break them once you get points deducted from homework. Also, too much expectations within a general introduction course. Both her and some TAs give an attitude of "everything is your fault".

Tough grader
Lots of homework
So many papers
1.0
5.0
CHEM107
Grade: Drop/Withdrawal
Nov 17, 2025

Extremely horrible. I wouldn't recommend this class to my worst enemy. She has a very specific and will take away points for any little mistake you make. And the final... whew, class averages are like 40-50%. If you can, avoid taking chemistry so you can avoid Skibo. RUN RUN RUN.

Tough grader
Lots of homework
Test heavy
1.0
4.0
CHEM105A
Grade: Not sure yet
Nov 17, 2025

She turns my dreams into nightmares

Tough grader
2.0
1.0
CHEM105B
Grade: Not sure yet
Dec 2, 2025

Pre & post labs are def a lot of work, takes up at least 5 & up to 10 hours EACH WEEK for the WHOLE SEMESTER. Basically u need to write a not-so-shortened scientific paper each week and your grade might not be good. SO MUCH WORK But if you're TA's fine and you accept that work (SO MUCH) you're grade won't be very bad, probably A-B

Tough grader
Lots of homework
So many papers
1.0
5.0
CHEM105AB
Grade: Not sure yet
Dec 3, 2025

lol a lot of busy work is pretty much a time sink but the moment i opened that lab exam i was like fairs bro i dont even care anymore lmao good one chief end my life

Tough grader
Lots of homework
Test heavy
1.0
5.0
CHEM105
Dec 3, 2025

king von of chem bruh ts pmo

1.0
5.0
CHEM105A
Grade: Not sure yet
Dec 3, 2025

we all gonna slime her out

Tough grader
Participation matters
1.0
5.0
CHEM105A
Grade: A
Dec 3, 2025

what everyone else said

Tough grader
1.0
5.0
CHEM105A
Grade: Not sure yet
Dec 3, 2025

just no. that's it

1.0
5.0
CHEM105A
Grade: Not sure yet
Dec 3, 2025

If you are a pre med student here, good luck.

Tough grader
Lots of homework
Test heavy
1.0
5.0
CHEM105A
Grade: Drop/Withdrawal
Dec 4, 2025

fade....genuinely fadeee

Tough grader
Lecture heavy
2.0
4.0
CHEM105A
Dec 4, 2025

the prelabs/postlabs are rly hard to understand at first, but it gets better over time trust. you never really see her so ur experience and grading depends on TA (usually pretty chill), beware of the sausage and spectrometry labs they take forever tho soooo excited for 105b

Tough grader
Lots of homework
1.0
1.0
CHEM105A
Dec 4, 2025

Good luck guys.

1.0
5.0
CHEM105A
Dec 4, 2025

💀💀💀💀💀💀💀💀💀

Tough grader
Get ready to read
Lots of homework
1.0
5.0
CHEM105A
Grade: A
Dec 4, 2025
Would take again

Taking this class was a truly unforgettable experience, mostly because I am still trying to forget it. The labs felt like Skibo handing out pieces of a puzzle she never bothered to finish. Nothing made sense, and the confusion was the only thing that showed up every week. At this point I can only assume her employment is part of another experiment.

1.0
5.0
CHEM107
Grade: B
Dec 5, 2025

For the final exam she sent out the review guide three hours before we had to go in for the exam, then told us on the review guide we wouldn't need to memorize big formulas as they would be provided, and then didn't provide the formulas we needed and gave us formulas for questions that weren't asked. She also grades super strict. No me gusta.

Tough grader
Participation matters
Test heavy
1.0
4.0
CHEM105A
Grade: A-
Dec 5, 2025

Pre-lab quiz in lab before every lab, read manual and memorize specifics for them Postlabs are long and useless prelabs are annoying She only grades hard for quiz, labs not much sometimes marks down for dumb things. Chem lab final is bad only hope is to memorize each lab and understand the calculations of them. Lab dependent on TA shes never there

Tough grader
Lots of homework
Beware of pop quizzes
5.0
1.0
CHEM105A
Grade: A+
Dec 5, 2025
Would take again

AMAZING! AMAZING! AMAZING! She truly cares about you. I thought I would struggle with chemistry, but after taking her course, I have decided to major in chemistry. She really inspires her students.

Inspirational
Hilarious
Caring
5.0
1.0
CHEM105A
Grade: A+
Dec 5, 2025
Would take again

Dr Skibo has had a tremendous positive impact on my time at USC. Don't let all these 1 star ratings fool you: she truly wants the best for you to succeed and become the best version of yourself. I am truly grateful to have been under the instruction of Dr. Skibo. Sure, the road was not all sunshine and rainbows, but CHEM105A built my resilience.

Inspirational
5.0
1.0
CHEM105A
Grade: F
Dec 5, 2025

Great class, great professor! No complaints. Labs were very easy to understand, and I had no difficulty with pre/post labs whatsoever. helpimbeingheldhostagebytheskibiditoilet

Lots of homework
1.0
4.0
CHEM105A
Dec 6, 2025

unnecessarily difficult. it gets better when you start to understand how the lab works and what the TA's are looking for in grading the post labs

1.0
5.0
CHEM105A
Dec 6, 2025

The 5 ratings are all from her i swear

1.0
5.0
CHEM105A
Grade: Not sure yet
Dec 6, 2025

No words….

Lots of homework
1.0
5.0
CHEM107
Grade: C+
Dec 6, 2025

Wow. Genuinely never had a professor or teacher that was this mean, unintelligent, and cold. She knows nothing and actually wants to make us suffer

Tough grader
Lots of homework
So many papers
1.0
5.0
CHEM105A
Grade: F
Dec 7, 2025

Dr. Skibo will want to make you want to get deported. Be aware. Don't bother applying for your F-1 Visa if you choose Skibo for Chemistry. #beawareslipperyfloor

Tough grader
Lots of homework
Test heavy
1.0
5.0
CHEM107
Grade: Not sure yet
Dec 7, 2025

Dear Skibo- You deserve nothing. You are a pathetic excuse of an educator and human being that should be rotting away on Skid row. I hate you. Your TAs hate you. The lecture instructors hate you. Your assignments do not teach chemistry and are just designed to make students suffer and waste time. You are the worst professor I have ever had.

Tough grader
So many papers
1.0
4.0
CHEM105A
Dec 7, 2025

You don't interact with her much, if at all, but her lab manual and grading is the worst. All of the TA's clearly don't like her. If you get a good TA, you'll be fine, but watch out for the pre/postlabs, because they are seriously impossible and take forever.

Tough grader
Lots of homework
1.0
5.0
CHEM105A
Grade: Not sure yet
Dec 7, 2025

The lab manual was often inaccurate, and led to a lot of confusion. Additionally, the rubric for labs were confusing and inconsistent. Pray for a good TA. Also, the lab final is insanely difficult, as she expects you to practically memorize her lab manual.

Tough grader
Lots of homework
1.0
5.0
CHEM105A
Grade: Not sure yet
Dec 7, 2025

The lab manual is inaccurate and is often corrected by TAs in lab. Labs don't align with lecture material, making simple concepts difficult to understand. Post-labs often feel redundant and have an unclear rubric. The syllabus lacks key information, and the lab final is unrealistic—she expects hours-long post-lab skills to be done in minutes.

Tough grader
Lots of homework
So many papers
3.0
2.0
CHEM105A
Grade: A
Dec 7, 2025
Would take again

Sure, Dr. Skibo isn't EXCELLENT, but she wasn't THAT bad. I know what real difficulty looks like, and Dr. Skibo is definitely not there. Most of these reviews are just whiny freshmen who've never taken a college class before. If you're conscious (or semi-conscious) in lab, you're going to be fine. Do be prepared for a lot of homework though.

Lots of homework
Beware of pop quizzes
So many papers
2.0
3.0
CHEM105A
Grade: A
Dec 8, 2025

Agree with the comment below. With the exception of the titration lab, everything was doable. Tedious, yes, but doable. People just overdramatize. Everything is TA dependent so pray for a good one and go to their office hours. I got fearmongered at first but it was genuinely fine for me and others I know, especially if you've done IB/AP in HS.

Lots of homework
Beware of pop quizzes
So many papers
5.0
5.0
CHEM105A
Grade: A
Dec 8, 2025

This is gonna upset people, but a lot of people wanna be doctors and not everyone can be. Skibo does a hell of a job crushing people's dreams, which needs to be done early so people don't waste time. Chem is THE weed out course (Bio does a decent job but a lot of idiots still get A/Bs). If you can't pass this class you do not deserve to be premed.

Lots of homework
1.0
5.0
CHEM105A
Grade: A
Dec 8, 2025

Skibo tried so hard for me to fail,

Lots of homework
So many papers
1.0
5.0
CHEM105A
Grade: A
Dec 8, 2025

Skibo did everything she could to get me to fail, yet I still ended with an A. She lost. I won. I know more chemistry than her. I'm smarter than her (not saying much). What is sad is that she puts a lot of effort into getting kids to fail, yet I didn't even try my hardest. She failed out of premed, so she tries to make sure her s

Tough grader
So many papers
1.0
4.0
CHEM105A
Grade: Not sure yet
Dec 9, 2025

Chem is difficult but manageable on its own. Skibo makes it unbearable. The labs are just your typical chem labs, except for some reason, she makes everything way more complicated and confusing than it has to be. Lab manual has to be copied by hand for each experiment, has typos and confusing ahh sentences, and just makes normal labs confusing.

So many papers
1.0
5.0
CHEM105A
Grade: A
Dec 9, 2025

Ms. (refuse to believe she is smart enough/deserving enough to be called Dr.) is a pathetic human and educator. She does not teach and instead has a quota each semester of students that need to fail out/drop the class. She will grade harsher and harsher till this quota is met. Truly an awful and ugly person. Also, she's proud of her 1.3/5 rating.

Lots of homework
So many papers
1.0
5.0
CHEM105A
Grade: C
Dec 9, 2025

RUN RUN RUN RUN RUN RUN. DO NOT STOP. DO NOT PASS GO. DO NOT COLLECT $200. RUN AWAY AND DO NOT LOOK BACK! SKIBO IS MEAN, RACIST, SEXIST, AND HATES PEOPLE WITH DISABILITIES.

1.0
5.0
CHEM105A
Grade: Not sure yet
Dec 9, 2025

make sure to enroll in a mental health course in conjunction with this class

Tough grader
Lots of homework
Lecture heavy
3.0
4.0
CHEM105A
Dec 11, 2025
Would take again

Guys… enough with the Skibo slander. You're taking chem at USC for gods sake.. this is not gonna be an easy A. Put in the work, have the will to learn and STOP USING CHAT ESPECIALLY IF YOU'RE PREMED. Skibo isn't even in lab, the TA's are there to run the lab and help students so idk how ppl say she's sooooo mean with zero interaction 😭

Participation matters
Group projects
Lots of homework
2.0
2.0
CHEM105A
Grade: A
Dec 11, 2025

I've never talked to Prof Skibo, the lab class was ran by TAs. What I can say, is that I've heard her yelling at students over nothing. Not okay. Also, the lab guide sucks, and would be better if it used a textbook and we weren't required to rewrite the whole thing for absolutely no reason every lab. The assignments were long but easy at least.

4.0
3.0
CHEM105B
Grade: A
Dec 11, 2025
Would take again

I don't understand the hate. If you stay on top of the material, the workload is manageable. Pre-lab quizzes are simple, and she curves the heck out of the final. Complaints seem to come from people who are surprised by what real pre-med rigor is, let alone med school. She was always kind and responsive, and nothing in the labs was ever THAT bad.

Participation matters
Lots of homework
Accessible outside class
5.0
1.0
CHEM105A
Grade: A
Dec 12, 2025
Would take again

Yeah some "premeds" believe shes a wanker but they be getting 75% on the lab final.... Some people can't even do titration properly idk how yall think u can go to med school, her lab is lowkey a cake walk and if you cant get a 95 across labs just hang it up atp

3.0
3.0
CHEM105A
Grade: Not sure yet
Dec 12, 2025

It is easy to score well if you do all the assignments and pay attention while doing them and submit them on time.Dont waste time studying for the lab final as no amount of studying can help you.For prelab quizzes read the experiment from manual including the background. Work is pointless and a lot but possible to score well. Grading depends on TA

Lots of homework
1.0
5.0
CHEM105A
Grade: B+
Dec 15, 2025

Skibo embodies 6 of the 7 deadly sins: pride (she's passive aggressive and arrogant), greed ($20 lab manual, which you can't bring to class and must copy by hand), envy (of other people's happy lives), gluttony (...), WRATH (evident by how she phrases quiz/exam questions), and sloth (unwillingness to fix errors in her lab manual). Fire her please.

Tough grader
Lots of homework
1.0
4.0
CHEM105A
Grade: A
Dec 15, 2025

Prelab and postlab assignments are ridiculously time-consuming and pointless, with insane calculations that you have to type out. Skibo never shows her face in labs, and the TAs are just as, if not more, confused than the students. Everyone fails prelab quizzes and the final because you don't know what to study and she doesn't give any equations.

Tough grader
Lots of homework
So many papers
3.0
3.0
CHEM105A
Grade: A
Dec 16, 2025

If you cannot get through this lab you shouldn't be premed and I would not want you as my doctor. Some people need to realize they are in college. This class is not difficult, it's just annoying and requires effort. If you can't get through this don't even bother with med school. Just pray for a good TA and ask for feedback instead of complaining.

Lots of homework
Beware of pop quizzes
So many papers
1.0
5.0
CHEM105A
Grade: A
Dec 17, 2025

If yall play chess, its playing with chatgpt... You don't know her next moves (which is stupid in the first place) I will say you don't really interact with the devil herself but you just need to bank on a good TA Lowkey better than expected and being real it isn't as hard as people make it sound, just pray you don't see the fat ball roll in...

Hilarious
5.0
1.0
CHEM105A
Grade: A
Dec 17, 2025
Would take again

She was the best person I've ever met!!! I truly love the way she teaches. Ratings don't reflect who she really is. Her feedback is so politely passive-aggressive it feels like a skill worth teaching. You'll know when you messed up I'd take this class just for the lab!!! LOVE SKIBO ALL THE WAY!!!!!!

Inspirational
Hilarious
Caring
5.0
1.0
CHEM105A
Grade: A
Dec 17, 2025
Would take again

The extra credit opportunities are genuinely helpful and thoughtfully designed. They reward effort, reinforce understanding, and can make a real difference in your grade. Instead of feeling like busywork, they feel fair and encouraging, showing that the professor truly wants students to succeed and be supported throughout the course.

Participation matters
EXTRA CREDIT
Respected
5.0
1.0
CHEM105A
Grade: A
Dec 17, 2025
Would take again

She's a tough professor with high expectations, but that's exactly why you grow so much in her class. She pushes you to think carefully, work harder, and take responsibility for your learning. It can be challenging at times, but by the end you're more confident, capable, and genuinely proud of how much you've improved.

Clear grading criteria
Inspirational
So many papers
5.0
1.0
CHEM105A
Grade: A
Dec 17, 2025
Would take again

She is a great instructor with a confident, professional presence that reflects years of experience. Her teaching is structured, clear, and demanding in the best way, pushing students to rise to the challenge. The stability and confidence of a tenured professor shows—she teaches with purpose, authority, and genuine care for student growth.

Get ready to read
Participation matters
EXTRA CREDIT
5.0
1.0
CHEM105A
Grade: A
Dec 17, 2025
Would take again

Just email her and talk to her she'll listen and she'll care Love SKIBO!!

Caring
Respected
Accessible outside class
5.0
1.0
CHEM105A
Grade: A
Dec 17, 2025
Would take again

She lowkey changed this year. She gave us so much extra credit and stuff. Just pass the lecture and you should do well in lab. Just hope you get good TA

4.0
3.0
CHEM105A
Grade: A
Dec 17, 2025
Would take again

You can email her. She is lowkey kinda passive aggressive but she is a good instructor. Like I really don't know why people give her such a hard rating.

Amazing lectures
Respected
Accessible outside class
4.0
2.0
CHEM105A
Grade: A
Dec 17, 2025
Would take again

You've gotta do so much work. Other than that easy as hell. Trust you can get that A, just do well in the lecture portion and yall be fine.

Lots of homework
Hilarious
So many papers
5.0
1.0
CHEM105A
Grade: A
Dec 17, 2025
Would take again

She will be passive-aggressive, but she does have a really clear instruction manual. Like genuinely, reading the recent ratings, like pray for an easy TA, like thats all you can bank on.

Gives good feedback
Caring
Accessible outside class
5.0
3.0
CHEM105A
Grade: A
Dec 17, 2025
Would take again

There is so much work to do. So many things to work with and lowkey was really hard. However, the professor herself isn't that bad. I never talked to her so like I cant really accurately judge. She is a great person from our first interaction though.

Inspirational
Lots of homework
So many papers
5.0
2.0
CHEM105A
Grade: C+
Dec 17, 2025
Would take again

Everyone lowkey just sad they got a bad Chem grade. The lab isn't as hard as people make it. Sure its got a lot of work but what were you expecting from a Chem class

Tough grader
So many papers
Respected
5.0
5.0
CHEM105A
Grade: B-
Dec 17, 2025
Would take again

Taking the class... I felt like I was dieing but like she was not as bad as they said she was so 5 star for that

5.0
3.0
CHEM105A
Grade: Rather not say
Dec 17, 2025
Would take again

Just do the extra credit and you'll be fine

EXTRA CREDIT
5.0
3.0
CHEM105A
Grade: A
Dec 18, 2025
Would take again

Lab is pretty fun. There is extra credit quizzes to improve your grade. The Professor is clear with what she wants and explains stuff patiently and politely. The lab manual and postlabs are a lot of work but it's all worth it in the end. I have absolutely no idea why people say the lab is hard when it was actually really easy. We love Skibo.

Participation matters
EXTRA CREDIT
Lots of homework
2.0
4.0
CHEM105A
Dec 19, 2025

Although you don't interact with her much, she is very aggressive when you do. The experiments she writes are sometimes unreasonably long, prelabs and postlabs can be very hard. I had more work in the lab component than in the lecture, even though its only 30% of my grade. Check brightspace because all announcements she posts are late at night.

Tough grader
Get ready to read
Lots of homework
2.0
5.0
CHEM107
Grade: B+
Dec 21, 2025

This is an honest review of her. She's not the nicest, but not terribly mean. There's a lot of work, but I'd say no more than 3 hours a week. Prelab quizzes and lab final are impossible. Chem 107 is usually graded way more friendly, and Skibo seems to give priority to 107 kids. Lab manuel is unclear but good TAs clear it up. B is pretty easy to get

Tough grader
Lots of homework
1.0
5.0
CHEM105A
Grade: B
Dec 21, 2025

Positive reviews here are most definitely her, only because there is now way someone can rate her higher than a 1. If you wear a seat belt to school, don't wear one. If you're not religious, find one before attending. If you want to ruin your life for a few months, take her and it'll be effortless to become depressed. If you still ignore, GL!

2.0
4.0
CHEM105A
Grade: A
Dec 22, 2025

Most work is from prelabs and post labs (few hrs of work for each). Pray for a good TA. Mine graded on effort so I just wrote a lot and got 100% on almost everything, but others are more strict. Gave lots of extra credit, I ended up with over 100% for lab grade. Most points lost will be from prelab quizzes and lab final, so study hard for those.

EXTRA CREDIT
Lots of homework
1.0
5.0
CHEM105A
Grade: A
Dec 28, 2025

No TA likes her. No student likes her. I get we have to deal with her for Gen Chem as she is the lab instructor, but forget about interacting with her. She takes so long to reply to emails, and when she does they are often rude. I hope and pray you can get through gen chem without having to interact with this woman.

Tough grader
So many papers
3.0
4.0
CHEM105A
Grade: A
Dec 30, 2025

Did not interact once with Skibo this semester. The labs are super annoying and time consuming though. Grade is entirely dependent on your TAs. Be ready for at least 10ish hours of just lab work a week. Postlabs can take up to 5 hours. Honestly, it isn't difficult to get a good grade in the lab section of 105a, but it may spare you health.

Class Info

Online Classes

100%

Attendance Mandatory

98%

Grade Predictor

Your expected effort level

LowHigh

Predicted Grade

A-

95% confidence
Based on 150 grades
Most common grades:
Not sure yet (84)
A (78)
A- (24)
Grade Distribution
A(83)B(14)C(13)D(4)F(4)A-/B+(35)
Based on 254 reported grades
Not sure yet: 84
A: 78
A-: 24
B+: 11
Common Tags
Tough grader (165)
Lots of homework (142)
So many papers (56)
Participation matters (35)
Test heavy (34)
Get ready to read (26)
Beware of pop quizzes (24)
Hilarious (9)
Rating Trend

Stable

+0.08 avg change
Jul
Aug
Sep
Oct
Nov
Dec
Last 6 months
Ratings by Course

CHEM105A

1.8

(160)

CHEM105AB

1.6

(7)

CHEM105B

1.4

(40)

CHEM105AANDB

1.4

(29)

CHEM107

1.3

(17)
+3 more courses
Difficulty by Course

CHEM105

4.9

105

4.9

CHEM105AB

4.7

CHEM107

4.6

105AL

4.6

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