Sig Fig Rules! (Significant Figures Rules and Examples)

Ahhhh!!!! Sig figs!!!!! They’re one of the most hated and pesky chemistry topics, but they’re used so frequently it’s super important to learn their rules.

In this video, I go over all the sig fig rules that you need to know for your chemistry/ science class. Significant figures are important because in science, scientists use sig figs to communicate with each other about how accurately they actually know the information they’re showing you.

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I'm Robin Reaction!
My goal is to help you understand chemistry by breaking down difficult concepts into pieces you can understand. I've taught thousands of students and no matter how much you're struggling, I promise you can learn this stuff if you dedicate yourself to learning it and get help from the right people!

[Sam-qfhk]

Okay, that was…amazing.


Learnt 90 minutes of class stuff in 4 minutes.

[albertocavazos]

This helped after I fell asleep in chemistry today...

[arianarice]

Thanks for telling me the extra 80% that my physics teacher neglected to mention! Helpful!

[ainsleyk.]

*Thank you!* My teacher literally spent 4 minutes explaining this and gave us a worksheet that did nothing.I wish you were my chemistry teacher!

[CRAZYBOY-vshs]

thank you so much my teacher was absolutely terrible at explaining this

[itzjay]

Thank you it just gave me an understanding of sig figs, I am a junior taking chem in high school right now

[heresjohnny]

I love this young lady. She is by far the best one on here for chemistry. I have returned to college after 25 years and currently taking chm1045. Robin explains everything you need to know as if you know absolutely nothing. I hope she has videos on everything I am going to be learning in this class. Robin you are a rock star!

[porakora]

Lol if only you re my chemistry teacher

[elizabethrouse]

I watched several other vids (plus chem class) and was still getting answers wrong in the practice. No more! Thank you for making this. The way you broke it down into "basically these are rules for the zeros" and 4a and 4b really really helped to clarify the thinking for me. I am going back to school after....wait for it....30 years. I was about to cry about this topic....lol. Now I will feel confident to shout out answers in class.

[soupwithpotatos]

I have just failed a chem test by one point and my teacher was not very good at explaining significant figures or reviewing for the test, now I'm here and this is really good, thank you.

[chelu]

I always hated sig figs in high school, now I’m in college taking chemistry 4 years later. This helped me refresh on what I needed to know for this semester, and put it in simpler terms for me. Thanks:)

[elliecath]

I barely comment on YouTube videos but this really is a life saver. Although I have the nicest and sweetest chem teacher she has an accent and I haven't gotten used to it yet. For the first couple weeks I've been so lost, this video really helps me understand. Thank you❤

[jazminj]

O.m.g. you made this so easy to understand. I am currently taking a phsyics class in college & she's has a heavy accent and it's hard to understand anything she says. =(

[ZylerX_X]

After 5 years I'm here by my teacher in 8th grade, you're a really good teacher:-):-)

[KazickstaN]

I first learned sig figs in Biology and couldn’t understand, and then in chemistry and I still couldn’t understand now I’m in physics and I finally understand. Thanks.

[nicholas]

I used to hate sign figs but ur explanation made them seem very simple and straight forward thank you! 👍👍👍

[reflection]

Thankyou so much, Robin finally got it after a long search on Sig-fig.
thumbs up

[chelseyzarraga]

thank you! as a visual learner, it helped with the green check marks!!

[kd]

You're the chem teacher everyone wants but nobody has. Thank you so much!

[tims.]

Best, most concise sig fig explanation. Thank you!