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universe

unit 2 lession 1

TermDefinition
1.astromonical Relating to astronomy.
2revolution The motion of a body that travels around another body in space
3solar system The sun and all of the planets and other bodies that travel around it.
4galaxy A collection of stars,dust,and gas bound together by gravity.
5planet A relatively large spherical body that orbitas star
6light year The distance the travel light travels
7star A large celesial body that is composed of gas.
8universe The Universe is all of time and space and its contents. The Universe includes planets, stars, galaxies, the contents of intergalactic space.
9rotation To spin of a body axis.
Created by: aaronm13
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