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| What are the order of the planets? |
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| Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, Neptune, Pluto |
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| What are the jovian planets? |
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| Jupiter, Saturn, uranus, Neptune, Pluto |
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| Which are the terrestrial planets? |
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| Mercury, venus, Earth, Mars |
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| Distance from Mercury to Sun: |
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| Rotational and orbital period of Mercury: |
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Rotation: 58 days
Orbit: 88 Days |
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| Rotational and orbital period of Venus: |
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Rotational:243 days
Orbital:224 days |
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| Orbital and rotational period of the Mars: |
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Rotational: >1 Earth day
Orbital: 686 days |
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| Rotational and Orbital period of Jupiter: |
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Rotational: 10 hours
Orbital: 12 years |
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| Rotational and orbital period of Saturn: |
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Rotational: <10 hours
Orbital: 29.5 years |
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| Rotatoinal and Orbital period of Uranus: |
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Rotational: 18 hours
Orbital: 84 years |
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| Rotational and Orbital period of Neptune: |
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Rotational: 19 hours
Orbital: 164 years |
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| Rotational and Orbital period of Pluto: |
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Rotational: 6.5 days
Orbital: 248 years |
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| What is the atmospheric comp. of Mercury? |
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| It has very little atmosphere. |
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| What is the atmospheric comp. of venus? |
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| Thick poisonous atm. of crbon dioxide and sulfuric acid |
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| What is the atmospheric comp. of Mars? |
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| 95% carbon dioxide, 3% nitrogen, 1.6% argon. |
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| What is the atmospheric comp. of Jupiter? |
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| 90% hydrogen, 10% helium, .07% methane |
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| What is the atmospheric comp. of Saturn? |
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| 97% hydrogen, 3% helium, .05% methane |
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| What is the atmospheric comp. of Uranus? |
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| 83% hydrogen, 15% helium, 2% methane |
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| What is the atmospheric comp. of Neptune? |
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| Its atmosphere contains hydrogen and helium with enough methane to give it a bluish tint. |
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| What is the atmospheric comp. of Pluto? |
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| Perhaps methane and nitrogen |
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| Unique feature of Mercury: |
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| Scientists have found water ice inside deep craters at the north and south poles. |
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| Venus spins backwards compared to other planets. One volcano on Venus is bigger than Mt. Everest. |
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