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Definition
| the study of the moon, stars, and other objects |
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| the imaginary line that passes through Earth's center and the north and south poles |
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| Earth spinning on its axis |
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| the movement of one ofject around another object |
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| Earth's path as it revolved around the sun |
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| the measurement of distance from the equator expressed in degrees north and south |
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| the day when the sun is directly overhead at either 23.5 degrees north or south |
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| the day when the sun is directly overhead at the equator |
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| occurs around March 21 and marks the spring in the Northern Hemisphere |
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| occurs around September 23 and marks the beginning of fall in the Northern Hemisphere |
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| different shapes of the moon you see from Earth |
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| when an object in space comes between the sun and a third object and casts a shadow on that object |
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| occurs when the moon passes between the Earth and the sun |
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| occurs at full moon when the Earth is directly between the moon and the sun |
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| the darkest part of moon's shadow |
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| the larger part of the shadow; part of the sun is visible from Earth |
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| the rise of fall of water caused by the pull of the moon |
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| the force that pulls the moon and Earth toward each other |
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| the combined forces produce a tide with the greatest difference between high and low tide |
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| the arrangement produces a tide with the least difference between high and low tide |
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| has a lens that focuses the light coming through the tube making distant objects seem closer |
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| a round pit on the moon's surface |
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| dark flat areas on the moon |
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| life other than that on Earth |
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