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Card 6

Front

what is oceanic crust?

Back

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Card 7

Front

what is some evidence that there is a lubricating layer under the lithosphere (asthenosphere)?

Back

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Card 8

Front

what do earthquake waves tell us? and how?

Back

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Card 9

Front

what edidence comes from meteorites?

Back

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Card 10

Front

how do we know that the inside of the earth is hot? give 2 reasons?

Back

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Card 11

Front

what is geothermal heat?

Back

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Card 12

Front

how is geothermal heat produced?

Back

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Card 13

Front

why does the inner core remain solid?

Back

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Card 14

Front

why is the outer core liquid?

Back

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Card 15

Front

what happens as the heat rises from the core?

Back

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