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Solar system

QuestionAnswer
Astronomical unit Used to measure far distances in space 1 AU=Distance from earth to sun
Meteoroid Chuck of rock smaller then asteroid
Meteor Streak of light
Meteorite Space rock found on Earth
Asteroid Millions of small rocky objects that orbit the Sun in asteroid belt between Mars and Jupiter
Comets Made of gas, dust, and ice, revolve around the sun in
Inner planets -Terrestrial planets -Solid and rocky -Mercury, Venus, Earth, Mars
Outer planet -Gas Giants -Made of ice and gas -Jupiter, Saturn, Uranus, Neptune -Hydrogen and Helium
Mercury -closest planet to the sun - NOT THE HOTTEST -so small it lack gravity and atmosphere
Venus - Hottest planet - greenhouse effect - Day is longer then a year - Acid clouds - No moons
Earth - only planet with known life - moderate temperatures - protective atmosphere - liquid water
Mars - largest known mountain- Olympus Mons - Possible sighs of life
Terrestrial Planets The four inner planets
Greenhouse effect Occurs when a planet atmosphere traps solar energy and causes the temperature increase
Jupiter -largest planet - Galilean moons - Great Red Spot
Saturn - most complex ring system - Least dense planet (it would float) -Titan largest moon
Uranus -Rotation axis is tilted 90 degrees so rotates like a bowling ball
Neptune - Longest period of Revolution -Swirling storms windiest planet
Gas Giants Jupiter, Saturn, Uranus, Neptune,
Galilean moons 4 moons Galileo discovered around Jupiter. - lo, Europa, Ganymede, Callisto
Dwarf planet -Pluto was the first - same as a planet but not larger then its neighbors - Ceres in the asteroid belt
Created by: user-1979320
 

 



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