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Seasons
Why do we have seasons
| Term | Definition |
|---|---|
| rotation | the spin of an object around its axis |
| rotation axis | the line on which an object rotation |
| orbit | the path an object follows as it Moves around another object |
| revolution | the orbit of one object around another object |
| solstice | when Earth rotation axis is tilted directly toward or away from the sun |
| equinox | when Earth’s rotation axis is tilted neither toward nor away from the sun |
| Phase | the lit part of the Moon or a planet that can be |
| waxing Phase | Phase of the moon during which more of the moon near side is lit each night |
| waning Phase | Phase of the moon during which less of the moon near side is lit each night. |
| umbra | the central darker |