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SUN AND MOON
its sience
| Term | Definition |
|---|---|
| sphere | 3D circle |
| axis | imaginary line that cuts through the middle of the earth |
| rotation | spinning of earths imaginary axis which takes about 24 hours to complete |
| revolution | earths yearly elliptical around the sun |
| ellipse | elongated close curve that causes earths long orbit |
| solstice | twice yearly at the point when the sun reaches the greatest distance from the equator |
| equinox | twice yearly time each spring and fall when sun is directly over equator and the # of day light is the same |
| moon phase | change in appearance of the moon as reinform the earth due to the relative position of the earth moon sun |
| new moon | moon phase that seams that the moon disappeared |
| waxing | describes phases following a new moon as the more lighted side of the moon becomes more visible |
| waning | describes phases that occur after a full moon as the lighted side of the moon grows smaller |
| full moon | phase that occurs when the moon all of the moons surface is facing the sun and becomes more visible |
| solar eclipse | occurs when the moon goes be tween the earth and the sun and creates a shadow on the earth |
| lunar eclipse | occurs when earths shadow falls on the moon |
| maria | dark colors on the moon that are like water |
| impact basin | a hollow crater left on the surface of the moon by asteroids |