6th grade

We are starting to work on Minerals. It's actually a pretty short unit, but it is a lot of fun.
The students are exploring various minerals - galena, hematite, calcite, etc.
They are conducting streak and hardness tests. Using Moh's hardness scale, the students first predict the hardness then test the mineral using their fingernail, a penny, a nail and a glass plate.
They are usually pretty surprised.