| A | B |
|---|
| rotation | the spinning of an object on its axis (this causes us to have day and night) |
| axis | imaginary line that goes throught the center of the Earth |
| 24 hours | the amount of time it takes for the Earth to rotate once |
| revolution | the movement of one object around another object (the Earth is moving around the sun) |
| 1 year | the amount of time it takes for the Earth to make one complete revolution around the sun |
| phases | the different shapes the moon seems to have in the sky |
| 29 and one half days | the amount of time it takes for the moon to go through all of its phases |
| new moon | the phase of the moon in which the lighted half faces away from the Earth (you can't see the moon at all" |
| seasons | are caused because the Earth is tilted and different amounts of light hit the Earth at different times of the year (the rays are slanted) |
