| A | B |
|---|
| equinox | one of the two times each year when the earth's polar axis is not pointed toward or away from the sun but is a 90 degree angle to the sun. |
| polar region | a cold area near the North or South pole. |
| rotation | the spinning of the earth on it's axis. |
| satellite | a body that orbits a larger body |
| revolution | the movement of the earth around the sun |
| solstice | the time of the year at which the earth's axis points at it greatest angle toward or away from the sun. |
| Date of fall equinox | around Sept 22 |
| Date of summer solstice | around June 21 |
