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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 rock smaller that asteroid
Meteor Streak of light
Meteorite Space rock found on earth
Asteroids Millions of small rocky objects that orbit the sun and in the asteroid belt between mars and Jupiter
Comets Made of gas,dust,and ice, revole around arou d the sun in the Kuiper Belt and Oort Cloud
Inner planets Terrestrial planets Solid rocky Mercury Venus earth mars
Outer planets Gas giants Made of ice and gas Jupiter Saturn Uranus Neptune Rings and moon Hydrogen and helium
Mercury Closet 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 its revolution-acid clouds
Earth Only planet with life Moderate temperature Protective atmosphere Liquid water
Mars Largest know mountain-Olympus Mons Possible signs of life
Terrestrial planets The four inner planets
Green house effect Occurs when a planets atmosphere traps solar energy and causes the temperature to increase
Created by: user-1979068
 

 



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