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6 Cards in this Set
- Front
- Back
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How did Aristotle come to the conclusion that the Earth was spherical?
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He studied the LUNAR ECLIPSE and noticed that the SHADOW ON THE MOON was created by the earth and was rounded. Therefore determining that the Earth had to be spherical.
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Why was Pluto demoted as a planet?
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Astronomists found another object, Eris, further out that is bigger and denser than Pluto. They now believe that Pluto and its moons are small enough to be considered Kuiper Belt objects
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List all of the planets and what they are made out of
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Terestrial Planets: Mercury, Venus, Earth, Mars made of rocky metallic materials.
Giant planets: Jupiter, Saturn (made of ydrogen and helium gas), Uranus, Neptune (made of icy rocky material) Pluto: |
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What is the Kuiper Belt
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Objects that the leftover debris from the formation of the outer planets
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What is the Oort Cloud?
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comets, rock-ice bodies, that come into the inner solar system
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What is the nearest star to Earth?
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Proxima Centauri
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