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Rotation and Revolut
| Question | Answer |
|---|---|
| Rotation | Circular motion (spinning) around an axis |
| Revolution | Movement of one object around another object |
| Length of Earth's Rotation | 24 hours (1 day) |
| Length of Earth's Revolution | 365.25 days (1 year) |
| Cause of Day and Night | Earth's rotation |
| Causes of Seasons | Earth's revolution and the Tilt of Earth on its axis |
| Equinox | Days that have equal amounts of daylight and darkness (occurs on March 21st and September 21st) |
| Winter Solstice | Shortest day of the year (occurs on Dec. 21st) |
| Summer Solstice | Longest day of the year (occurs on June 21st) |
| Gravity | A force that pulls two objects toward one another |
| Orbit | A path an object follows as it circles around another object |
| Summer | Occurs when that hemisphere is tilted toward the sun |
| Winter | Occurs when that hemisphere is tilted away from the sun |