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13 Cards in this Set
- Front
- Back
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Rocks are made of what?
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minerals
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Igneous Rock
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A rock that was formed by lava that cooled and hardened
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Sedimentary Rock
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A rock that formed from layers of sediment that hardened into rock
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Metamorphic Rock
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A rock that has been changed by heat and pressure inside the Earth
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Rocks can be classified using what properties?
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color, texture, cleavage and hardness
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How can you best determine the hardness of a rock or mineral?
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a scratch test
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When does a rock has the property of cleavage?
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when it breaks with rough edges
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examples of an igneous rock
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pumice, basalt and granite
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examples of a sedimentary rock
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sandstone, limestone and shale
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examples of a metamorphic rock
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marble, gneiss, and slate
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examples of minerals
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gold (used for jewelry and money), talc (used for powder),
iron (ships, buildings and cars), and sulfur (used in medicine) |
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Describe the process of the rock cycle.
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Rocks can change from one type to another over many, many years of heat, pressure and
weathering. |
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What are the three factors that change a rock from one type to another over many, many years?
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heat, pressure and weathering
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