Chemistry › States of matter › Atoms and Brownian motion

Age level:  13-15

Web links

1. Atom Builder
   http://www.pbs.org/wgbh/aso/tryit/atom/

2. Chemistry for Kids: Atoms
   http://www.chem4kids.com/files/atom_intro.html

3. How Stuff Works: How Atoms Work
   http://www.howstuffworks.com/atom.htm

4. Internet Encyclopedia of Philosophy: Democritus
   http://www.utm.edu/research/iep/d/democrit.htm

5. Wikipedia: Democritus
   http://en.wikipedia.org/wiki/Democritus