The chemistry resources on this site are officially in the public domain (CC0). As a result, you should feel free to use them in whatever way you’d like.
Disclaimer: Though I’ve had good luck with these resources with my own students, I can’t guarantee that they’ll work for you. By using these resources, you agree to do so at your own risk and hold Ian Guch blameless for anything bad that happens. Furthermore, you agree to use all prudent safety practices with your students (esp. goggles!) and to not do these activities if you’re unsure whether you can do them safely.
As you’ve probably guessed, this site may be free to use but it isn’t free to operate. If you could please donate to the upkeep of this site, it would be greatly appreciated (PayPal = support@cavalcadepublishing.com). To be totally clear, you do NOT need to donate to use all aspects of this site and you never will. I ask that you consider donating to support the site, but a donation will never be required to use it.
If you go online you can find videos of people blowing stuff up with their chemistry knowledge. PLEASE DO NOT REPEAT ANYTHING YOU SEE THEM DO. These people are irresponsible and do things that may lead to injury or death. Please leave the chemistry to your teacher or other experts – don’t try anything at home!