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| The periodic rise and fall of te waters in the ocean. Caused by attractive forces between the Earth, Moon, and Sun |
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| A dark patch that appears on the sun |
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| Region beyond Plutos orbit where comets originate |
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| Belt similar to the asteroid belt but extendsbfrom neptune out into the outer solar system. Compose of objects left over from the formation of the solar system. |
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| Graph that shows the absolute magnitude of stars against temperatures |
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| A unit of length equal to the distance from the Earth to the sun |
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| What everything is made up of |
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| Matter composed of antiparticles |
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| The orbit of one object around another. |
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| A natural body that revolves around another body |
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| Marks the start of summer in the northern hemisphere. Longest daylight day |
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| Marks the start of winter in the northern hemisphere. Shortest daylight day of the year |
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| When the moon is eclipsed by the Earths shadow. Can only occur during a full moon. |
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| When a part of the Earths surface passes into the shadow of the moon. Can only occur during a new moon |
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| Outer region in the Earths atmosphere |
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| A rock from space that has entered the Earths atmosphere. A shooting star. |
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| A rock traveling through the void of space |
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| A piece of rock from space that is found on the earths surface |
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| The name of the Earths natural satellite. |
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| The tide when there is te least difference between high and low tide |
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| The point in an orbit when an object s te furthest from the body it is orbiting. |
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| A rock in space with a specific ir it around the sun |
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| Bands of color across the sky in upper atmosphere caused by the particles that are emitted from te sun hitting the Atmosphere |
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| Marks the start of fall in the northern hemisphere. Equal numbers of daylight and dark hours |
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| Marks the start of spring in the northern hemisphere. Equal number of daylight and dark hours. |
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| An imaginary line around which a celestial body turns. |
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| A ball f frozen materials and rock in space |
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| A pattern in the stars in the night sky |
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| A curved r elliptical path that an object follows around another object |
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| The point at which an object orbiting another object is closest to that object. |
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| A body that meets a specific criteria fir classification, that is orbiting a star. |
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