8th Grade-Ch. 3 Sec. 4 Outer Planets
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Transcript of 8th Grade-Ch. 3 Sec. 4 Outer Planets
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Gas GiantsGas Giants • made up almost entirely of gases
Jupiter
Saturn
Uranus
Neptune
• not Plutonot Pluto
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outer outer planetsplanets
Jupiter Saturn Uranus Neptune Pluto
gasgiants
• larger• many moons
• far apart• rings
exceptPluto
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most massive planet
Great Red Spot = ongoing hurricane
4 largest moons-
1. Ganymede- largest
2. Io- active volcanoes
3. Europa- icy crust - liquid H20 under
4. Callisto- icy surface with craters
Jupiter is more than 300 times as massive as Earth.
Jupiter, King of the Roman gods
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Jupiter is really big !
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Jupiter with one of its many moons.
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Europa
There are currently There are currently 63 63 known moons orbiting known moons orbiting Jupiter.Jupiter.These are the largest These are the largest four.four.
Callisto
Io
Ganymede
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View of Jupiter from Voyager 1
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2nd largest planet
hundreds of rings- made of chunks of ice & rock
31 known moons- largest = Titan
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Titan, the Largest Moon of Saturn
• very thick atmosphere which is mostly nitrogen
• bigger than both Mercury and Pluto
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• For all their solid appearance, in truth, Saturn's splendid rings are composed of trillions of separate objects – ranging from house-sized “boulders” all the way down to tiny specks of dust measuring just millionths of an inch across.
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interactive puzzle about Saturn
• Saturn, god of harvest or time of reaping (sixth planet from the sun).
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• Uranus, father of Saturn and
grandfather of Jupiter
looks bluish methane gas in atmosphere
discovered by William Herschel in 1781
axis tilted at 90o angle• possibly caused by collision w/ another object
rotates on its side from top to bottom
at least 22 moons
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Great Dark Spot- similar to Jupiter’s Great Red Spot
at least 13 moons largest = Triton
The Great Dark Spot
Neptune,Roman god of the sea
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smaller & denser than gas giants- • smaller than Earth’s moon
discovered by Clyde Tombaugh in 1930
3 moons- largest= Charon• close in size & close together• Pluto & Charon called double planet
Pluto, Greek god of wealth, ruled the dark underworld
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Two small moons have been discovered orbiting Pluto, bringing the planet's known satellites to three.
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