click below
click below
Normal Size Small Size show me how
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 |