Planet%20Facts

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Planet Facts
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Planet Size
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Vocabulary

• Surface Pressure (bars or atmospheres) - This is
  the atmospheric pressure (the weight of the
  atmosphere per unit area) at the surface of the
  planet in bars or atmospheres.
• Length of Day - The average time compared to
  Earth for the Sun to move from the noon position
  in the sky at a point on the equator back to the
  same position.

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Mercury

• Surface Pressure 0
• Gravity 3.7
• Length of day 175.9
• Diameter 4879 km
• Temperature 167 C

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Mercury

• Wind Speed 0
• Atmosphere virtually no atmosphere, however what
  is there contains hydrogen, oxygen, sodium,
  potassium and argon.
• Water yes
• Other most iron rich planet in the Solar System

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Venus

• Surface Pressure 92
• Gravity 8.9
• Length of day 116.8
• Diameter 12,104 km
• Temperature 462 C

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Venus

• Fastest Wind Speed 1810 km/h
• Atmosphere mostly of carbon dioxide
• Water very little
• Other Billions of years ago, Venus probably had
  much more water.

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Earth

• Surface Pressure 1
• Gravity 9.8
• Length of day 1
• Diameter 12,756 km
• Temperature 15 C

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Earth

• Fastest Wind Speed 371 km/h
• Atmosphere nitrogen and oxygen
• Water yes
• Other contains life

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Mars

• Surface Pressure 0.01
• Gravity 3.7
• Length of day 1.03
• Diameter 6792 km
• Temperature - 65 C

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Mars

• Fastest Wind Speed 93.2 km/h
• Atmosphere mostly carbon dioxide
• Water most is frozen
• Other Called the red planet because of the iron
  oxide on the surface.

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Jupiter

• Surface Pressure Unknown
• Gravity 23.1
• Length of day .415
• Diameter 142,984 km
• Temperature -110 C

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Jupiter

• Fastest Wind Speed 620 km/h
• Atmosphere hydrogen
• Water trace amounts
• Other 63 moons

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Saturn

• Surface Pressure Unknown
• Gravity 9.o
• Length of day .445
• Diameter 120,536 km
• Temperature -140 C

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Saturn

• Fastest Wind Speed 1,800 km/h
• Atmosphere mostly of hydrogen and helium
• Water trace amounts
• Other The rings are made up of dust, gravel,
  snow, ice, rocks, boulders.

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Uranus

• Surface Pressure Unknown
• Gravity 8.7
• Length of day 0.720
• Diameter 51,118 km
• Temperature -195 C

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Uranus

• Wind Speed 700Km/h
• Atmosphere hydrogen and helium
• Water Yes
• Other 27 moons

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Neptune

• Surface Pressure Known
• Gravity -11
• Length of day - .673
• Diameter 49,528 km
• Temperature - 200 C

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Neptune

• Wind Speed 200Km/h
• Atmosphere methane gas
• Water yes
• Other Methane gives Neptune its blue cloud
  color.

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