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Solar system

QuestionAnswer
Astronomical unit Used to measure far distances in space 1 AU =distance from earth to sun
Meteoroid Piece of rock smaller than an asteroid
Meteor Streak of light
Meteorite Space rock found on earth
Asteroid Millions of small rocky objects that orbit the sun in the asteroid belt between mars and Jupiter.
Comets Made of gas dust ice revolve around the sun in the Kuiper Belt and Oort cloud
Inner planets Terrestrial planets Sold and rocky Mercury Venus earth mars
Outer planets Gas giants Made of gas and ice Jupiter astern u
Mercury Closest planet to the sun NOT the hottest- so small it lacks gravity and atmosphere
Venus Hottest planet Greenhouse effect Day is longer than a year-rotation time is longer than is revolution Acid cloud
Earth Only planet with known life Moderate temperatures Protective atmosphere Liquid water
Mars Largest known mountain-Olympus mons Possible signs of life
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 The Great Red Spot
Saturn Ring system Least dense planet it would float Home to titan-a moon
Uranus Rotation tilted 90 degrees so it rotates like a bowling ball
Neptune Longest period of revolution Swirling storms- windiest planet
Gas giants Jupiter Saturn Uranus and Neptune
Galilean moons 4 moons Galileo discovered around Jupiter IO, Europa, Ganymede, Callisto
Dwarf planets Pluto was first Same as planet but no larger than its neighbors Ceres in asteroid belt
Created by: user-1979069
 

 



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