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12 Cards in this Set
- Front
- Back
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What did Galileo observe to support heliocentric theory?
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(1) Venus goes though phases just like earth. (2) Thorough his telescope hr saw that Jupiter has four moons.
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How does the sun produce energy?
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Nuclear Fusion
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What layer are you looking at when you look at an image of the sun?
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Photosphere
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Solar wind is a stream of electrically charged particles that extend outward from the sun's what?
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Corona
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What does heliocentric mean?
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The earth and the other planets revolve around the sun.
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What do all of the inner planets have in common?
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They are all small and have rocky surfaces and are terrestrial planets
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Which inner planet once had water, besides Earth?
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Mars
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What do the first four outer planets have in common?
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They are large and are made of hydrogen and helium and their also known as the gas giants.
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Who discovered that the planets have an elliptical orbit?
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Kepler
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What did Copernicus explain?
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Heliocentric
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Which parts of the Sun's atmosphere become visible during an eclipse?
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Chromsphere and corona
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What makes Venus and Earth sometimes called "twins"?
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They look the same and they are the same size and density
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