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| Term | Definition |
|---|---|
| earths rotation | the tilt of earth on its axis and it takes 24 hours. |
| earths revolution | revolves around the sun and it takes 365 days. |
| solar eclipse | When the moon passes directly between the earth and the sun, blocking the suns light. |
| lunar eclipse | the moon appears darkened as it passes into the earths shadows |
| summer solstice | June 21st 15 HRS 5 mins northern 84 degrees 94 million miles |
| winter solstice | Dec 21st 9 hours and 14 minutes south 44 degrees 91 million miles |
| equinox | fall and spring 12 HRS equator for both March 21st and Sept 23rd |
| moon phases | he different shapes of the sunlit portion of the Moon visible from Earth, caused by the Moon's orbit around Earth 1 month |
| tides | change based on where the moon gravity pulls on the earth |