Acids & Bases

from http://science-class.net/archive/science-class/Chemistry/acids_bases.htm

Anger: an acid that can do more harm to the vessel in which it is stored

than to anything on which it is poured.

Seneca

These resources are generally appropriate for grades 5 - 9. In some cases they have been classified by grade level. 

The groupings are general and somewhat arbitrary. As with anything in education; your milage may vary.

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