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18 Cards in this Set
- Front
- Back
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sphere
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a round three deminsional object
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axis
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imaginary vertical line around which earth spins
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rotation
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earth spinning on its axis
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revolution
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earths yearly orbit around the sun
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ellipse
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elongated, closed curve
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solstice
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the day when sun reaches its greatest distance north or south of the equator
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equinox
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when the sun is directly above earths equator
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moon phase
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different forms that the moon takes in its appearance from earth
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new moon
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when the moon is between the earth and the sun
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waxing
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more of the illuminated half of the moon can be seen each night
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full moon
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all of the moon's surface facing the earth reflects light
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waning
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when we see less of the moons illuminated half each night
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solar eclipse
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when the moon moves directly between the sun and Earth and casts its shadow over part of earth
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lunar eclipse
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when earths shadow falls on the moon
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maria
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dark colored relatively flat regions of the moon
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impact basin
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depression left behind an object striking the moon
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how many days does it take for the moon to go around the earth
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27.3
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what is the order of the moon phases starting with the new moon?
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new moon, waxing crescent, 1st quarter, waxing gibbous, full, wanning gibbous, 3rd quarter, wanning crescent
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