Chemistry links

Chemistry for kids:  http://www.chem4kids.com/index.html

        Assignment:  Matter, elements and atoms worksheet.

Middle School Chemistry:  http://www.middleschoolchemistry.com/

Exploratorium:  http://www.exploratorium.edu/

Size of things - Universe to smaller than a quark - http://static.flabber.net/files/scale-of-the-universe-2.swf 

Ionic vs Covalent:  http://video.about.com/chemistry/Ionic-v-Covalent-Chemical-Bond.htm