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rock vocab
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Question | Answer |
---|---|
Earth’s Evolution | earth separated into layers |
Mineral composition | compounds that make up a mineral |
Rock cycle | rocks change form one type into another over time |
igneous rock | Formed when lava or magma cools |
Lava | magma that has reached the earth’s surface |
Magma | molten rock under the earth's surface |
Metamorphic rock | formed heat and pressure cause existing rocks to be changed |
Heat pressure | Changing variables due to the weight of overlying rocks forming metamorphic rock |
Sedimentary rock | Rocks form when particles of other rocks are deposited in layer |
Compaction | articles are pressed together or packed down |
Cementation | sediments stack together |