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Solar System

TermDefinition
Astronomical unit Used to measure far distances in space 1 AU =92,955,807.273 mi distance from the earth to the sun
Meteoroid
Mercury Closest 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 it’s revolution Acid clouds
Earth Only planet with known life Moderate temperatures protective atmosphere Liquid water
Mars Largest known mountain-Olympus Mons Possible sign 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
Created by: user-2014999
 

 



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