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5.9A Vocabulary
Sun, Earth, and Moon System
| Term | Definition |
|---|---|
| Apparent Motion | perceived movement of the Sun or Moon from Earth. |
| Axis | invisible line through Earth from the North Pole to the South Pole. |
| Day/Night Cycle | regular patterns of change between daylight (day) and darkness (night). |
| Rotate | spinning of Earth on its axis. |
| Shadow | a dark area formed when light is blocked by an object. |