Across
- 2. Cold and warm.
- 5. Occur when the earth tilts.
- 6. We live on a ___________.
- 7. The travel of cold and warm air.
- 9. Send signals and take pictures in space.
- 11. The movement of one object around another.
Down
- 1. Caused by the Earth's rotation; the moon it visible.
- 3. When the earth spins on its axis.
- 4. Caused by the Earth's rotation; the moon is not visible as well.
- 6. Any form of liquid or solid water particles that fall from the atmosphere and reach the surface of the Earth. Rain, snow, sleet, hail, and freezing rain.
- 8. The hottest star.
- 10. The sun's __________ keeps the planets from flying off into space.