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3 Cards in this Set
- Front
- Back
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solar system
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The sun, with the group of celestial bodies which, held by its attraction, revolve round it.
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planet
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Any of the celestial bodies (other than comets or satellites) that revolve around the sun in the solar system
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gravity
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The force of attraction between all masses in the universe; especially the attraction of the earth's mass for bodies near the surface.
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