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13 Cards in this Set
- Front
- Back
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geologist |
a person who studies the dynamics and physical history of the earth, the rocks of which it is composed, and the physical, chemical, and biological changes that the earth has undergone or is undergoing. |
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mantle
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The layer of hot, solid material between Earth's crust and core |
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crust |
The layer of rock that forms Earth's outer surface. |
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inner core |
A dense sphere of solid iron and nickel at the center of Earth. |
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outer core |
A layer of molten iron and nickel that surrounds the inner core of Earth. |
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weathering |
the chemical and physical processes that break down rock at Earths surface |
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erosion |
the process by which water, ice, wind, or gravity moves weathered rock or soil |
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mechanical weathering |
type of weathering in which rock is physically broken into smaller pieces |
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abrasion |
the grinding away of rock by other rock particles carried in water, ice, or wind |
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ice wedging |
process that splits rock when water seeps into cracks then freezes and expands |
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chemical weathering |
the process that breaks down rock through chemical changes |
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oxidation |
a chemical change in which a substance combines with oxygen forming rust |
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permeable |
characteristic of a material that is full of tiny, connected air spaces that water can seep through |
