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Solar system

TermDefinition
Astronomical unit Used to measure far distances in space 1 AU=distance from earth to sun
Meteoroid Chunk of rocks smaller then asteroid
Meteor Streak of light
Meteorite Space rock found on earth
Asteroids Small or rocky objects that orbit the sun in the asteroid belt between Mars and Jupiter
Comets Made of dust, gas, and ice, revolve around the sun in the Kuiper Belt and Oort Cloud
Inner planets Terrestrial planets Solid and rocky Mercury, Venus, earth ,mars.
Outer planets Gas giants Made of ice and gas Jupiter, satern, Uranus, Neptune, Rings and moons Hydrogen and helium
Planet Spherical, orbits the sun, clears its orbit
Mercury Closest planet to the sun NOT THE HOTTEST- so small it lacks gravity and atmosphere v
Venus Hottest planet Green house affect Day is longer than a year rotation time is longer than it’s revolution Acid clouds
Earth Only planet with known life. Moderate temperature Protective atmosphere Liquid water
Mars Largest known mountain Olympus moons Possible signs of kice
Terrestrial planets The four inner planets
Greenhouse affect 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 -least Dense planet it would float -titan largest moon
Neptune -Longest period of revolution -swirling storms-windiest planet
Uranus Rotation axis is tilted 90 degrees so rotates like a bowling ball
Dwarf planets -Pluto was the first - same as planet but not larger than its neighbors -ceres in the asteroid belt
Created by: user-1979402
 

 



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