Across
- 3. Tropical Cyclone with violent winds.
- 4. Nitrogen, Oxygen
- 6. _______ is what maintains all the planets in orbit.
- 7. The __________ ionizes atoms and molecules.
- 8. Height, Elevation
- 16. Water, Gas
- 19. Earth's ______ lays above the troposphere.
- 20. The study of the atmosphere.
Down
- 1. Visible mass of condensed water vapor.
- 2. CO
- 5. Force from molecules pushing against anything around them.
- 9. __________ starts occuring about 15,000 feet in the air.
- 10. N
- 11. Weather, Atmosphere
- 12. Atoms and molecules start excaping into space in the _______.
- 13. Long-term weather in a particular area.
- 14. D
- 15. Meteorology, climate
- 17. AR
- 18. O