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ES CBA Unit 7—Rocks
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Radiocarbon dating uses _______ isotopes to determine how old things are.
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Hydrogen
Uranium
Carbon
Iron
Contrast rocks and minerals—how are they different?
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Explain how earthquakes help us learn about Earth's interior.
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Name one of the three main types of rock, and how it is formed.
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Which of Earth's layers is the THICKEST?
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Crust
Mantle
Outer core
Inner core
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