Rocks and Minerals

Front

Rocks are classified into three major groups:

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igneous, metamorphic, and sedimentary

Front

Rocks that form when magma or lava cools and hardens are

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igneous rocks

Front

Rocks that form in layers when sediments are pressed together, often containing fossils, are

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sedimentary rocks

Front

Rocks that are changed by heat and pressure are

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metamorphic rocks

Front

What helps us identify minerals?

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properties of minerals

Front

Which of the following is NOT a mineral property? Options: size, streak color, luster, hardness

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size

Front

Which mineral property tells the true color of the mineral by leaving behind a streak of powder when rubbed on a plate? Options: streak color, luster, hardness, cleavage

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streak color

Front

Which mineral property describes how a mineral breaks?

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cleavage

Front

Which mineral property describes the mineral's resistance to being scratched?

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hardness

Front

Which mineral property describes how the mineral reflects light?

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luster