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13 Cards in this Set
- Front
- Back
Which are the inner planets and why are they called that?
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Mercury, Venus, Earth, Mars - they are inside the asteroid layer.
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How are the inner planets alike? Why are they called terrestrial?
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They are all earthlike with a rocky crust, dense mantal and very dense core.
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What are the outer planets? Why are they called that?
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Jupiter, Saturn, Neptune, Uranus and Pluto
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Describe the outer planets.
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They are gaseous, the first 4 are much larger than the inner planets, the outer layer has hydrogen and they all have ring systems.
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Which planet is closest t o the sun? Which is farthest?
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Mercury is closet, Pluto is farthest.
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How much closer to the sun is Venus than Earth?
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venus=68-69 million miles
earth = 91 - 95 million miles |
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How much closer to the sun is Earth than Mars?
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Earth - 91-95 miles
Mars 128-155 million miles |
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What is the largest planet? What is the smallest planet?
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Jupiter
Pluto |
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How does the combined number of moons of the inner planets compare to the combined number of moons of the outer planets?
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of the inner planets only Earth and Mars have moons. All of the outer planets have moons, some of which are very large.
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What characteristics of earth make it capable of supporting life?
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atmosphere, water, carbon
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What characteristics of the Jovian planets are similar to Jupiter?
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large, gaseous, has rings and moons.
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What characteristics of Venus are similar to those of Earth's?
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diameter, mass and gravity
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Would you expect Venus or Saturn to have a longer period of revolution? why?
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Saturn because it is farther from the sun.
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