Testing Minerals for Hardness and Streak
These two kids are deeply studying minerals! It is a good sign when you only see the tops of their heads! :)
Using one of the kits that have 15 minerals and the tools to learn how to test the minerals inside for hardness, luster, streak. Working together, they figured out which minerals are harder than our fingernails, but not as hard as a nail or glass. It is a a process to see that doing the science has steps for discovery.