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Seasons
Why we have seasons
Term | Definition |
---|---|
Rotation | The spin of an object around its axis. |
Rotation axis | The line on which an object rotates. |
Orbit | The path an object follows as it moves around another object. |
Revolution | The orbit of one object around another object. |
Solstice | When earths rotation axis is tilted directly toward or away from the sun. |
Equinox | When earths rotation axis is tilted neither toward nor away form the sun |
Phase | The lit part of the moon or a planet that can be seen from earth. |
Waxing phase | Phases of the moon during which more of the moons near side is lit each night. |
Waning phase | Phases of the moon during which less of the moons near side is lit each night |