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10 Cards in this Set
- Front
- Back
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GPS
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a group of satellites that travels around the earth
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the mantle
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one of the layers inside the earth
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365 1/4
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number of days it takes to the earth to travel around the sun
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isthmus
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a narrow piece of land that connects two larger pieces of land
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the atmosphere
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the air surrounding the earth
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environment
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human's natural surroundings
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axis
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imaginary line running through the earth's center
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core
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the center of the earth
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the sun
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the center of the solar system
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faults
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cracks in the earth's crust
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