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Vocabulary

Quiz yourself by thinking what should be in each of the black spaces below before clicking on it to display the answer.
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Question
Answer
Tides   Daily movements of ocean water that change the level of the ocean's surface.  
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Gravity   The force of attraction between two objects.  
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Lunar Eclipse   An event in which the Earth comes between the sun and the moon and the shadow of the Earth falls on the moon.  
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Revolution   The motion of a body as it orbits another body in space; one complete trip along an orbit.  
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Rotation   The spin of an object on its axis.  
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Axis   Imaginary line through an object. The object rotates on the axis.  
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Hemisphere   The half of the Earth (top or bottom) that the equator separates.  
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Phases   The moon's different appearances to us on Earth; they are due to the moon's changing position in its orbit.  
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Solar Eclipse   An event in which the moon comes between the Earth and the sun and the shadow of the moon falls on part of the Earth.  
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Solstice   The point at which the sun is as far North or South of the equator as possible.  
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Equinox   The point at which the sun is directly above the equator.  
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Waning   Late phases of the moon when the sunlit fraction we see from Earth is getting SMALLER.  
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Waxing   Early phases of the moon when the sunlit fractions we see from Earth is getting LARGER.  
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