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Solar system

QuestionAnswer
Astronomical Unit Used to measure far distances in space 1AU= distance from the sun to the earth
Meteoroid Chunk of rock smaller than an 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 the Oort Cloud.
Inner planets Terrestrial planets Solid and rocky Mercury, Venus, Earth and Mars
Outer planets Gas giants Ice and gas Rings and moons Hydrogen and helium Jupiter, Sat
Mercury Closes planet to the sun No the hottest planet-so small it lacks the gravity and atmosphere
Venus Hottest Greenhouse effect Day is longer that a year-rotation is longer that its revolution Acid clouds
Earth Only plant known with 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 planet’s atmosphere traps solar energy and causes the temperature to increase
Jupiter Largest planet Galilean moons Great Red Spot
Saturn Most complex ring says Least dense planet -it would float Home to titan-a moon
Uranus Rotation axis is tilled 90 degrees so rotates like a billing ball
Neptune Longest period of revolution Swirling storms- windiest planet
Gas giants Jupiter, Saturn, Uranus, Neptune Nicknames for the outer planets
Galilean moons 4 moons Galileo discovered around Jupiter Io, Europa, Ganymede, and Callisto
Dwarf planet Pluto was the first Same as a planet but not larger than its neighbors Ceres is the one found in the asteroid belt
Created by: user-1979165
 

 



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