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Astronomy (Individual planets (Jupiter (composition (hydrogen, helium,…
Astronomy
Individual planets
Mercury
closest to sun, less gravity, no atmosphere, fastest revolution
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Venus
mistaken for a star, dense clouds, similar to earth, lots of pressure, retrograde rotation
Earth
blue marble, supports life, water, fertile soil, breathable gasses
Mars
red, iron oxide soil (rust), cold, volcanoes, 2 moons
Jupiter
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composition
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outer part= bands of water, methane, and amonia
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Saturn
7 rings, gaseous, 21 moons
composition
helium, amonia, methane, ethane, clouds
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uranus
composition
helium, hydrogen, methane
backwards orbit, icy rings smallest gas giant
Neptune
similar to Uranus, long revolution, cold, very far from sun, 8 moons
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Comet
small body of ice, gas, and rock
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comet tail: dust, ion, and charged particles
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Inner planets
Small, Rocky, closer to the sun, few to no moons
Asteroids
minor planets, rocky bodies that orbit the sun
outer planets
gaseous, many moons, far from the sun
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