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15 Cards in this Set
- Front
- Back
4 layers of the earth
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crust
mantle outer core inner core |
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what is the crust made of
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granite and basalt
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mantle
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directly below th ecrust mad of hot rocks made up of two different layers
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2 layers of mantle
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lithosphere athenosphere
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lower-most part of the mantle
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athenoshere
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what does the athenosphere do?
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flows very slowmly
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2 parts of the core
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a liquid outer core and a solid inner center
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outer core
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a layer of molten material
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inner core
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a dense ball of solid metals
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crust___km
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5-40km
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mantle___km
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2900km
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outer core___km
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5150km
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inner core___km
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6371km
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how did columbus and the early explorers change our thoughts?
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with maps
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alfred wegener
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1st to think about how our continents move
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