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Solar system

TermDefinition
Astronomical unit Used to measure far distances in space 1AU= distance from earth to sun
Meteoroid Chunk of rock smaller then 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
Inner planets 1 terrestrial planets 2 Solid and rocky 3 mercury, Venus,earth,mars
Outer planets 1gas giants 2 made of ice
Mercury Closest planet Not the hottest -so small it lacks gravity and atmosphere
Venus Hottest planet Greenhouse effect A day is longer then a year Acid clouds
Earth Only planet with known life. Moderate temperature. Protective atmosphere liquid water
Mars Largest known mountain-Olympus mons Possible life
Greenhouse effect Occurs when a planet atmosphere traps solar energy and causes the temperature to increase
Jupiter Largest planet. Gailiean moons. Great red spot.
Saturn Most complex ring system. Least dense planet-it would float. Home of a titan moon
Uranus Rotation axis is tilted 90 degrees so rotates like a bowling ball
Neptune Longest period of revolution Swirling storms -windiest planet
Gas Giants 4 outers nickname
Gailian moons Io, Europa, Ganymede, Callisto
Dwarf planet Pluto was first Same as planet but not larger than its neighbors Ceres in asteroid belt
Created by: user-1979077
 

 



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