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Solar system

QuestionAnswer
Astronomical unit Used to measure far distances in space 1 AU=92,955,807.273 mi distance from the earth to sun
Meteoroid Chunk of rock smaller then a asteroid
Meteor Streak of light
Meteorite Space rock found on earth
Asteroids Millions of small rocky objects that a orbit the Sun in the asteroid belt between mars and Jupiter
Comets Made of gas dust and ice, revolve around the sun in a Kuiper Belt and oct cloud
Inner planets Terrestrial planets Solid, rocky Mercury, Venus,earth,mars
Outer planets Gas giants Made of ice, gas Jupiter Saturn Uranus Neptune Rings and moons hydrogen and helium
Mercury * closest planet to the sun *NOT THE HOTTEST- so small is lacks gravity and atmosphere
Venus * hottest planet * greenhouse affect * day is longer then a year-rotation time is longer then it’s revolution *acid clouds
Earth * only planet with known life * moderate temperatures *protective atmosphere *liquid water
Mars *largest known mountain- Olympus mons * possible signs 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
Jupiter * largest planet * Galilean moons *great red spot
Saturn * most complex ring system * lest dense planet -it would float * titan- largest moon
Uranus’s * the rotation is tilted 90 degrees so it 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 * 4 moons Galileo discovered around Jupiter -io Europa Ganymede Callisto
Dwarf planets * Pluto was the first * same as the planet but not larger then it’s neighbors * ceres is in the asteroid belt
Created by: user-1996825
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