Across
- 3. Spring and _____ tides
- 5. one of the components of the Earth/Sun system
- 7. when the north pole is tilted towards the sun
- 8. solar radiation that reaches Earth
- 9. dark spots on the Sun's surface
- 10. Earth rotates on its ______
- 11. hydrogen and ______ primarily make up the Sun
- 12. gases trapped in the atmosphere
Down
- 1. cycles of glacial/interglacial periods
- 2. solar energy traveling through space
- 4. when the axis rotates
- 6. Earth's atmosphere is ______
- 13. Earth's axis is not tilted away or towards