3rd Grade Rocks and Minerals Vocabulary

Ms. Thornburg’s Flash Cards!

Your Name

What do we call the process whereby each type of rock can

be changed into another?

Rock cycle

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What do we call a solid object that was formed in nature and was never alive?

Mineral

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What do we call a rock that forms from material that has settled into layers that are squeezed together over time?

Sedimentary rock

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What do we call a solid substance made of minerals?

Rock

Your Name

What do we call the part liquid, part solid, hot iron center of the Earth?

Core

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What do we call the thin, solid outer layer of the Earth?

Crust

Your Name

What do we call a rock that was once melted, but has cooled and hardened?

Igneous rock

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What do we call the thicker, hotter, softer layer of the Earth located below the crust?

Mantle

Your Name

What do we call igneous, sedimentary, or metamorphic rock that has been changed by heat and pressure?

Metamorphic rock