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Planet Facts. Planet Size. 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.
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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.
Mercury • Surface Pressure: 0 atm • Gravity: 3.7 m/s2 • Length of day: 175.9 • Diameter: 4879 km • Temperature: 167 C
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
Venus • Surface Pressure: 92 atm • Gravity: 8.9 m/s2 • Length of day: 116.8 • Diameter: 12,104 km • Temperature:462 C
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.
Earth • Surface Pressure: 1 atm • Gravity: 9.8 m/s2 • Length of day: 1 • Diameter: 12,756 km • Temperature: 15 C
Earth • Fastest Wind Speed: 371 km/h • Atmosphere: nitrogen and oxygen • Water: yes • Other: contains life
Mars • Surface Pressure: 0.01 atm • Gravity: 3.7 • Length of day: 1.03 • Diameter: 6792 km • Temperature:- 65 C
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.
Jupiter • Surface Pressure: Unknown • Gravity: 23.1 m/s2 • Length of day: .415 • Diameter: 142,984 km • Temperature: -110 C
Jupiter • Fastest Wind Speed: 620 km/h • Atmosphere: hydrogen • Water: trace amounts • Other: 63 moons
Saturn • Surface Pressure: Unknown • Gravity: 9.0 m/s2 • Length of day: .445 • Diameter: 120,536 km • Temperature: -140 C
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.
Uranus • Surface Pressure: Unknown • Gravity: 8.7 m/s2 • Length of day: 0.720 • Diameter: 51,118 km • Temperature: -195 C
Uranus • Wind Speed: 700Km/h • Atmosphere: hydrogen and helium • Water: Yes • Other: 27 moons
Neptune • Surface Pressure: Unknown • Gravity: 11 m/s2 • Length of day: .673 • Diameter: 49,528 km • Temperature: - 200 C
Neptune • Wind Speed: 200Km/h • Atmosphere: methane gas • Water: yes • Other: Methane gives Neptune its blue cloud color.