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Cards In This Set
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How do many scientists say the solar system came into existence?
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By a cloud of dust
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What do scientists say contracted to form the solar system?
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Dust and gas
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What do scientists say caused the flatness of the dust and gas disk?
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Rotation
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What are considered the inner planets?
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Mercury, Venus, Earth, and Mars
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Not counting the sun, where is the hottest place in the solar system?
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Venus
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In Fahrenheit degrees, how big is the temperature range among the planets?
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1296 degrees Fahrenheit
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What is so unusual about the orbit of Pluto compared to the rest of the planets?
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It is HIGHLY elliptical
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What are the inner planets called?
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The terrestrial planets
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Why are they considered earth-like?
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They all have metallic iron cores with rocky mantles and crusts
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What are the outer planets called?
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The giant planets (or gas giants)
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What would cause your weight to be different on the other planets?
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The force of gravity
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How do you calculate your weight on other planets?
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Weight x force of gravity
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Why would you weigh less on Mercury than on Earth?
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Mercury is smaller (has less mass) so its gravity is weaker
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What is mass the measure of?
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The amount of "stuff" something has (atoms)
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Does your mass change from planet to planet?
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No
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