Chemistry class gets down to the nitty-gritty—moles of atoms and molecules that come together in covalent and ionic bonds. You’ll learn what’s going on around you even when you can’t see it, and that the smallest of changes can make a big difference. In the High School Chemistry Web Guide
, students and parents will find chemistry help with homework and test prep, while teachers will get lesson plans and classroom tools to make teaching chemistry fun. Educators: Sign up for our education newsletter.