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19 Cards in this Set
- Front
- Back
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Earth revolves around the ? in an? |
Sun in an elliptical orbit |
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What causes the seasons? |
The tilt of Earth's axis and its revolution |
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Mantle |
portion of the interior of a planet or moon lying between the crust and core |
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moon phase |
change of appearance of the Moon as viewed from the Earth, due to the relative positions of the Moon, Earth, and Sun |
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New Moon |
moon phase that occurs when the Moon is between Earth and Sun, at which point the Moon cannot be seen bc its lighted half is facing the sun and its dark side is facing earth |
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waxing |
describes phases following new moon, as more of the Moon's lighted side becomes visible
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Full Moon |
occurs when all of the moons surface facing earth reflects light |
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waning |
describes phase occur after a full moon ass the visible lighted side becomes visiblee |
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solar eclipse |
occurs when the Moon passes directly between the sun and earth and casts a shadow over part of earth |
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lunar eclipse |
occurs when earth's shadow falls on the moon |
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maria |
dark colored relatively flat regions of the moon formed when ancient lava reached the surface and filled craters on the Moon's surface |
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comet |
space object orbiting the sun, formed from dust and rock particles mixed with frozen water, methane, and ammonia |
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impact basin |
a hollow left on the surface of the moon caused by an object striking its surface |
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During the waxing phases, the illuminated portion of the moon grows? |
grows larger |
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During the waning phases, the illuminated portion of the moon grows? |
grows smaller |
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what causes a lunar eclipse? |
earth passing directly between the sun and the moon causes a lunar eclipse |
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what causes a solar eclipse? |
the moon passing between the earth and the sun causes a solar eclipse |
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How long does it take to revolve around earth? |
The Moon takes about 27 days (27 days, 7 hours, 43 minutes, 11.6 seconds) to go all the way around the Earth and return to its starting position.
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3rd quarter = waning gibbous, waxing crescent |
1st quarter= waning gibbous, waning crescent ( lasts about 29.5 days) |
