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Solar system

TermDefinition
Astronomical units Used to meaner far distances in space 1AU=Distance from earth to the sun
Meteoroid Chunk of rock smaller than an asteroid
Meteor Streak of light
Meteorite Space rock found on Earth
Asteroids Millions of small rock 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
Inner planets * Terrestrial planets * Solid and rocky * Mercury, Venus, Earth, Mars
Outer planets * Gas Giants * Made of ice and gas * Jupiter, Saturn, Uranus, Neptune * Rings and Moons * Hydrogen and Helium
Planet Spherical, orbits the Sun, clears its orbit
Jupiter Largest planet Galilean Moons Great Red Spot
Saturn Most complex ring system Least dense an would float Titan is the largest moon
Uranus Rotation axis is tilted 90 degrees so it rotates like a bowling ball
Neptune Longest period of revolution Swirling storm windiest planet
Gas Giants Nickname for the for outer planets
Galilean Moons 4 moon Galileo discovered around Jupiter Io, Europa, Ganymede, Callisto
Dwarf planets Pluto was first Same as planet, but not as large as its neighbors Ceres in asteroid belt
Earth Only planet with known life Moderate temperature Protective atmosphere Iquitos water
Mars Largest known mountain Olympus Mons Possible signs of life
Green house effect Occurs when a planets atmosphere traps solar energy and causes the temperature to increase
Mercury Closest planet to the sun Not the hottest- so small it lacks gravity
Venus Hottest planet Greenhouse effect Day is longer than a year-rotation time is longer than revolution time Acid clouds
Created by: user-1979329
 

 



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