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5 Cards in this Set
- Front
- Back
solar system
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the sun and the planets and other objects that orbit the sun
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geometric model
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a representation of the universe in which stars and planets revolve around earth
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heliocentric model
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a representation of the relationship between the planets in which the planets revolve around the sun
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big bang theory
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a hyphothesis supported by data, that describes how the universe began with a huge explosion
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trajectory
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when space probes pass by their gravity, which makes it pass to a curve
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