1.1 planetary geology definitions
- Created by: emma may ellen
- Created on: 20-12-18 09:40
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- 1.1 planetary geolgy
- the solar system
- the solar system is the sun, planets, their moons, comets and asteroids
- the sun
- the sun is a star of composed hydrogen and helium. it is the largest object in the solar system and contains more than 99.8% of the total mass.
- a planet
- a planet is a sizable object orbiting a star
- a moon
- a moon is a natural satellite orbiting a planet
- asteroid
- asteroids are rocky objects which failed to form a planet
- meteorites
- meteorites are fragments of rock, which fall to earth from spacw
- comet
- a comet is composed of ice and dust. the outer layer melts into water vapor as it gets closer to the sun
- the solar system
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