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12 Cards in this Set
- Front
- Back
any one of thousands of small planets or rocks that circle around the sun |
asteroid |
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when a substance combines with another to form a new substance |
chemical change |
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a bright heavenly body that develops a cloudy tail as it moves closer to the sun in its orbit |
comet |
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one of the very large groups of stars and other matter that are found throughout the universe |
galaxy |
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the galaxy of which the solar system is a part and which contains the stars that create the light |
Milky Way Galaxy |
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a natural satellite that revolves around a planet |
moon |
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the path taken by one body circling around another body, as in the path of the earth around the sun |
orbit |
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a large body in space that orbits a sun but does not produce light |
planet |
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the sun with the planets, moons, asteroids, and comets that orbit it |
solar system |
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the closest star to Earth |
sun |
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adjustment to environmental conditions |
adaptation |
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a theory that the various kinds of plants and animals are descended from other kinds that lived in earlier times and that the differences are due to inherited changes that took place over many generations |
evolution |