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Our solar system

QuestionAnswer
Astronomical unit Used to measure far distance in space 1 AU=Distance from earth to sun
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, revolve around the Sun in Jupiter Belt and o
Inner planets .terrestial 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
mercury .closet planet to the sun .NOT THE HOTTEST - so small it lacks gravity and atmosphere .no moons
Venus .hottest planet .greenhouse effect .day is longer than a year - rotation time is longer than its revolution .acid clouds .no moons
Earth .only planet with known life .moderate temperatures .protective atmosphere .liquid water
Mars .largest known mountain-Olympus Mons .possible signs of life
Terrestrial Planet 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 spots
Saturn .most complex ring system .least dense planet -it would float .Titan-largest moon
Uranus .rotation axis is titled 90 degrees so rotates like a bowling ball
Neptune .longest period of revolution .swirling storms-windiest planet
Gas giants Jupiter, Saturn, Uranus, Neptune Nickname for the 4 outer planets
Galilean Moons 4moons Galileo discovered around Jupiter -10,Europa, Ganymede, Callisto
Dwarf Planet .pluto was the first .same as planet but not larger than its neighbors .Ceres in the asteroid belt
Created by: user-1979311
 

 



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