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10 Cards in this Set
- Front
- Back
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solar system
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composed of:
the sun planets other bodies that travel around the sun |
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nebula
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dust and gas clump together in huge interstellar clouds
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solar nebula
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the name of the nebula that formed into our own solar system
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planetismal
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bits of dust within the solar nebula stuck together when they collided, forming the tiny building blocks of the planets
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rotation
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the Earth's spinning on it's axis
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revolution
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the motion around the sun along it's orbit
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orbit
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the Earth also travels around the sun in a path
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period of revolution
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the amount of time it takes for a single trip around the sun
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ellipse
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a closed curve in which the sum of the distances from the edge of the curve of two points
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astronomical unit
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the average distance between Earth and the sun
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