ChemTours play

ChemTours have been used by general chemistry students across the country. Now Norton is making ChemTours available to instructors and students at no additional cost. Click here to take advantage of what many think are "the best animations ever."


Big Bang
Electromagnetic Radiation

» More ChemTours

Thanks for your helpful site. It helped me to get a 98 on my last test. I'm so happy that I found it that I had to email you and thank you.” - Chinedu Agu

Your tutorial on colligatives just saved me from a big fat zero on my chemistry quiz tomorrow and even on my upcoming test. I wish I had found your site sooner.”
- Adriana Blake

This website is FANTASTIC !!!!! I stumbled upon this from a link on the College Board AP chemistry listserv. I have been teaching chemistry and AP chemistry for about 30 years and this is some of the best stuff I've EVER seen. The animations are simply some of the best out there AND they are accurate”. - Ken Witt, Crown Pointe High School (IN)

I am a high school chemistry student and I just wanted to let you know how helpful your site was. It really helped me to prepare for the AP exam. With the interactive tutorials, I learned the material better than I did in class.” - Andrea Thomas

What a great website; your animations are the best I've seen! Thanks for developing such great resources.”
- Tom Collins, Exeter (UK)

See for yourself what people are talking about!