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11 Cards in this Set
- Front
- Back
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revolve
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around the sun, one trip takes one year
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rotate
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on its axis, takes 24 hours to turn one time making one day and one night
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mass
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a huge amount of anything
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meteorite
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stone or metal that falls to the earth from outer space
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gravity
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a force that holds everything toward the center of the earth
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ellipses
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the shapes of the planets around the path of the sun
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heliocentric
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sun centered or measuring from the sun
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meteor
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matter that enters the earth's atmosphere
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Axis
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An imaginary line that goes through the center of the earth
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matter
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anything that has weight and takes up space
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orbit
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the path the planet follows on its trip around the sun
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