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Solar System

QuestionAnswer
Astronomical unit Used to measure far distance in space 1=AU distance from earth to the sun
Meteoroid Chunks of rocks smaller than asteroid
Meteor Streak of light
Meteorite Space rock found on earth
Asteroids Millions of small rocky objects that orbit the Sun in the asteroid belt between Mars and Jupiter
Comets Made of gas,dust,and ice revolve around the sun in the Kuiper Belt and Oort Cloud.
Outer planets Gas Giants Made of ice and gas Jupiter, Saturn, Uranus, Neptune Rings and moons Hydrogen and Helium
Inner planets Terrestrial planets solid and rocky Mercury, Venus, earth and mars
Mercury Closest to the sun NOT THE HOTTEST- so small it lacks the gravity and atmosphere
Venus Hottest planet Greenhouse effect Day is longer than a year-rotation time is longer than it’s revolution Acid clouds
Earth Only planet with known life mountain temperature Protective atmosphere Liquid water
Terrestrial Planets The four inner planets
Greenhouse effect Occurs when a planets atmosphere traps solar energy and causes the temperature to increase
Jupiter Largest planet Galilean moons Great Red Spot
Saturn Most complex ring system Least dense planet - it would float Home of Titan-a moon
Uranus Rotation axis is tilted 90 degrees so rotates like a bowling ball
Neptune Longest period of revolution and swirling storms - windiest planet
Gas Giants Jupiter, Saturn, Uranus, Neptune, nickname for the 4 outer planets
Galilean Moons 4 moons discovered around Jupiter, Io, Europoa, Ganymede, Callisto
Dwarf planet Pluto was the first Same as planet but not longer than it’s neighbors Ceres in the asteroid belt
Created by: user-1979085
 

 



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