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Solar System

TermDefinition
astronomical unit used to measure far distances in space, one au equals distance from the earth and sun
meteoroid chunk of rock 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 and revolves around the sun in the kure belt and the oort cloud
Mercury closest planet to the sun but not the hottest, and so small it lacks an atmosphere
Venus hottest planet and greenhouse effect, day is longer than a year, and acid clouds
Earth only planet with known life and moderate temperatures and protective atmosphere and liquid water
Mars largest known mountain, olympus mons, and possible sounds 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, Great Red Spot
Saturn Most complex ring system, least dense planet, and titan which is the largest moon
Uranus rotation axis is tilted 90 degrees so rotates sideways
Neptune farthest planet from the sun, longest revolution, and swirling storms
Gas Giants Jupiter, Saturn, Uranus, and Neptune, nickname for the gas planets
Galilean moons 4 moons Galileo discovered around Jupiter, Io, Europa, Ganymede, Callisto
Dwarf Planet Pluto and Ceres, same as planet but not larger than its neighbors
Created by: user-1979176
 

 



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