Moh's Hardness Scale
Groups come up with as many ways as they can think of to test the hardness of the rocks, and to put them in order from weakest to strongest.
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How Can We Tell The Hardness of Rocks?
Students complete a lab activity. In this hardness of rocks instructional activity, students observe and touch various rock samples. Students determine if they can make a scratch mark on any of the rock samples and use the Internet to...
2nd - 4th 21st Century Skills
Children Actively Investigating Rocks and Minerals
Students follow directions to set up their own record keeping journal. As a class, they are introduced to the characteristics of crystals and identify three types of crystals they see in their everyday lives. They examine materials they...
2nd - 5th Science