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13 Cards in this Set
- Front
- Back
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The inner planets are also called what |
Terrestrial planets |
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What are the inner planets |
Mercury Venus Earth Mars |
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Mars (tell all about it) |
Smallest planet Rough terrain with many craters in steep cliffs No atmosphere One of the hottest planets Temperature ranges from -280°F at night up to 800°F during the day No moon Rotation period of 59 days Revolution period of 88 days |
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Venus (Tell all about it) |
Similar to earth in diameter and mass Atmosphere of thick layers of CO2 (96%) Surface is mainly gently rolling plains, also has volcanoes and high mountains Hottest planet Temps up to 900°F So hot because heat stays trapped in CO2 layers, greenhouse effect Has 300,000 times more CO2 than earth No moon Has clouds of sulfuric acid Extremely dense atmosphere 100 times that of earth Rotation period of 243 days Rotates on its axis backwards retrograde motion Revolution period of 225 days |
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Mars |
Named for the Roman god of war Smaller than earth half the diameter Red soil due to iron oxide Polar ice caps made of frozen CO2 Has four seasons more extreme than Earth's Atmosphere of CO2 (95%) and nitrogen (3%) with trees mounts oxygen and water vapors Largest canyon in the solar system (Valles Marineris) Surface has huge channels and dry riverbed, indicates liquid water once flowed there Two moons - Phobos and Deimos -captured asteroids highest mountain in the solar system 15 miles high Olympus mons Rotation period of 24.6 hours Revolution period of 687 days |
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The outer planets are also called what |
Jovian planets |
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What are the outer planets |
Jupiter Saturn Uranus Neptune |
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Which planets are gaseous (composed of mainly helium and hydrogen) |
Outer planets |
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Jupiter (tell all about it) |
Largest planet in the solar system mass is greater than any other planets combined Rotate every 10 hours Has a small solid core - 30,000°C at the core Atmosphere has strong winds called jet streams - up to 200 mph and blow in alternate directions Very faint rings Over 60 moons Very strong magnetic field - up to 20 times as strong as earths Big atmospheric storm - Giant red spot Largest moons called the Galilean moons - are Io Europa Ganymede and Callisto Revolution period of 12 years |
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Saturn (tell all about it) |
Second largest planet About 2 dozen moons Largest moon is titan - has a substantial atmosphere of mainly nitrogen Rings made of dust and gas and ice Very high winds Rotation period of 10 hours Revolution period of 29 years Density less than 1.0 - would float in water |
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Uranus (tell all about it) |
Diameter of four times bigger than Earth Thick atmosphere of hydrogen helium and methane Slightly larger than Neptune Has five major moons in 20 smaller ones Rotation period 18 hours Revolution period of 84 years At least 11 rings of methane ice Surface covered by ocean of super heated water Rotates on its axis and 90° angle |
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Neptune (tell all about it) |
Revolution period of 16 hours Atmosphere storm called great dark spot Solid core with surface of ocean water Huge clouds of methane floating in an atmosphere of helium hydrogen Winds up to 1300 mph Has rings and about a dozen moons Largest moon is triton Triton is the most famous moon one of the few moons in the solar system that has an atmosphere Triton Orbits in retrograde fashion |
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Pluto (tell all about it) |
was the ninth planet until August 2006 Demoted to a giraffe planet status - had nothing in common with all the outer planets One moon called Charon Revolution period of 248 years Overlaps its orbit with Neptune Composed of mainly methane ice |
