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earth
unit4
| Question | Answer |
|---|---|
| rotation | the spin of a body on its axis |
| day | the time required for Earth to rotate once on its axis |
| Revolution | the motion of a body that travels around another body in space; one complete trip along an orbit |
| Year | the time required for the Earth to orbit once around the sun |
| Season | a division of the year that is characterized by recurring weather conditions, and determined by both Earth’s tilt relative to the sun and Earth’s position in its orbit around the sun |
| Equinox | the moment when the sun appears to cross the celestial equator |