Across
- 4. the source region for cold air masses
- 5. a gas molecule that is made up of three oxygen atoms
- 6. violent windstorm that take the formation of a rotating column of air
- 8. a mixture of gases that surrounds a planet, such as Earth
- 13. the transfer of heated by mass movements or circulation
- 14. an immense body of air that is characterized by similar temperatures and moisture
- 17. forms when cold dense air moves into a region occupied by warmer air
- 18. the spinning of the Earth around its axis
- 19. tropical cyclone that produce sustained winds of at least 119 km per hour
- 20. the coldest layer of the atmosphere
Down
- 1. produces precipitation over a large area for an extended period of time
- 2. the color of the sky due to scattering
- 3. a boundary that separates two air masses of different properties
- 7. air masses that form over the ocean
- 9. a vertical cylinder of rotating air that develops in the updraft of a thunderstorm
- 10. the transfer of heat through matter by molecular activity
- 11. makes up 78% of the atmosphere
- 12. includes all forms of energy that travel through space as waves
- 15. primary energy source for Earth
- 16. one of the three main stages of a thunderstorm