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10 Cards in this Set
- Front
- Back
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Orbit |
the path taken by an object revolving around another
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sphere |
a round three dimensional object |
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axis |
imaginary vertical line that cuts through the center of Earth and around which Earth spins
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rotation |
spinning of earth on its imaginary axis, which takes about 24 hours to complete and causes day and night to occur |
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revolution |
Earths yearlong elliptical orbit around the Sun |
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ellipse |
elongated, closed curve that describes earth's yearlong orbit around the sun |
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equinox |
twice- yearly time- each spring and fall- when the sun is directly over the equator and the number of daylight and night time hours are equal |
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solstice |
twice- yearly point at which the sun reaches its greatest distance north or south of the equator |
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Earth is a ? that rotates around ? |
Earth is a slightly flattened sphere that rotates around an imaginary line called an axis |
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Earth has a ? |
magnetic field |
