Across
- 3. The temperature at which condensation begins
- 6. Any form of water that falls from clouds and reaches Earth’s surface as rain, snow, sleet, or hail
- 10. The areas near both of the poles
- 12. The area near the equator
- 14. The average annual conditions of temperature, precipitation, winds, and clouds in an area
- 15. The climate of some coastal regions, with relatively warm winters and cool summers
- 16. The climate of the centers of the continents, with cold winters and warm to hot summers
- 17. Wispy, feathery clouds made of ice crystal that form at high levels
- 18. Coal, oil, or natural gas that forms over millions of years from the remains of ancient organisms; burned to release energy
- 19. Clouds that form in flat layers and often cover much of the sky
Down
- 1. A gradual increase in the average temperature of the atmosphere, thought to be caused by an increase in greenhouse gasses from human activities
- 2. The change of state from a gas to a liquid
- 4. The process by which molecules at the surface of a liquid absorb enough energy to change to a gas
- 5. The percentage of water vapor in the air compared to the maximum amount of water vapor that the air can contain at a particular temperature
- 7. The areas between tropical and polar zones
- 8. The continual movement of water among Earth’s atmosphere, oceans, and land surface through evaporation, condensation, and precipitation
- 9. The amount of water vapor in a given volume of air
- 11. Gases in the atmosphere that trap energy
- 13. Fluffy, white clouds, usually with flat bottoms, that look like rounded piles of cotton