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How do geologists understand the Earth’s history? In part, they measure the age of rocks and other natural materials by dating techniques. They can date rocks by gauging the amount of decay of radioactive elements. The time necessary for half of any given amount of one element (the “parent...
Grade Level   5 6 7 8 9
Classroom Activities Curricula and Instruction
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2
This activity teaches the student to identify minerals by observing and testing the physical properties of each mineral. Have students compare their test results with the Mineral Identification Sheet.
Grade Level   4 5 6 7 8 9 10 11 12
Classroom Activities Curricula and Instruction
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