The Mohs relative hardness scale forms the basis of mineral hardness testing. Minerals are graded on an arbitrary 1-10 scale, with each number relating to a mineral standard. This kit introduces students to the Mohs scale and allows them to test the hardness of four mineral samples, as well as giving them the tools to test mineral hardness of local samples. This kit works well as an introduction into mineral physical properties and identification. Providing enough materials for 15 groups of students, each kit also includes a teacher's guide, student study guide copy masters, and material safety data sheets (MSDS). This kit aligns with next Generation Science Standard MS-PS1-3, relating to structure and function.

What's in the box?

1 bag "Sample A", 15 pieces
1 bag "Sample B", 15 pieces
1 bag "Sample C", 15 pieces
1 bag "Sample D", 15 pieces
35 pieces of aluminum foil
35 scratch plates
35 streak plates
Teacher's manual, student study guide copy masters, and material safety data sheets (MSDS)
For Laboratory Use Only. Not for drug, food or household use. Keep out of reach of children. For more information, refer to the Safety Data Sheet.