| A | B |
| The earth spins on an imaginary line called an ____ | Axis |
| Day and night is caused by the earth's _______ | Rotation |
| Life on earth depends upon light from the ___ | Sun |
| Where sunlight hits the earth at an angle, it is ______ than where the sunlight hits the earth directly | Cooler |
| One complete orbit of the Earth around the sun is called a ________ | Revolution |
| The time the Earth takes to go around the sun in one _____ in Earth Time | Year |
| Historically, people used movements of the sun, moon, and stars to create a ________ | Calendar |
| The tilt of the Earth's axis causes the _______ | Seasons |
| Winter, spring, summer and fall each last about ______ months | Three |