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20 Cards in this Set
- Front
- Back
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MOLD |
A hollow left in sediment after an organism dissolves. |
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CHEMICAL WEATHERING |
A process that changes the minerals in rocks. Water, oxygen, and acids act on rocks , forming new minerals. |
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ICE AGE |
A period of thousands of years when snow and ice cover much of the earth. |
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OXIDE |
A material formed when oxygen joins chemically with a mineral. |
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ROCK CYCLE |
The ways that rocks change from one form to another. |
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PHYSICAL WEATHERING |
The breaking of the rocks into smaller pieces. |
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SEDIMENTARY ROCK |
Rock that forms from cemented or pressed sediments. |
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RUN OFF |
Water that drains off land. |
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CRYSTAL |
A substance made up of stones arranged in a repeating pattern. All the crystals of a mineral have the same basic shape but can be different size |
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EROSION |
Moving of weathered rock and soil. |
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IGNEOUS ROCK |
Rock formed from cooled magma. |
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DEPOSITION |
The dropping of the sediments moved by erosion. |
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GLACIER |
A large slow-moving mass of ice. |
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SEDIMENT |
Soil, sand, and rocks carried by wind and water. |
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IMPRINT |
A footprint or other track of an organism that hs been preserved in rock |
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DEPOSITION |
Dropping of sediments moved by erosion. |
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WAVE EROSION |
Waves crashing against the shore of a lake or ocean. |
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PETRIFY |
To replace molecules in dead organisms with minerals. |
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METAMORPHIC ROCK |
Rock formed when heat and pressure change the minerals in igneous or sedimentary rocks. |
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CAST |
A fossil formed by sediments filling a mold. |
