1. WEATHER AND CLIMATE Chapter 2 UNDERSTANDING WEATHER

2. Section 1B Water in the Air Clouds

3. cloud a collection of millions of tiny water droplets or ice crystals

4. Clouds form as water vapor is added to the air and ______ rises and cools. warm

5. As it cools, the air becomes _________ and changes to a liquid or solid due to ___________. condensation saturated

6. flat-bottomed, puffy, white cloud cumulus

7. The prefix nimbo- or the suffix -nimbus added to the name of a cloud indicates the probability of __________. precipitation

8. cloud that produces thunderstorms cumulonimbus

9. clouds that form in layers, caused by a gentle lifting of a large body of air into the atmosphere stratus

10. a cloud that produces light to heavy continuous rain nimbostratus

11. stratus cloud formed when water vapor condenses near the ground fog

12. thin, feathery clouds found at high altitudes cirrus

13. the prefix used to describe high-altitude clouds cirro-

14. the prefix used to describe middle-altitude clouds alto-

15. the prefix used to describe low-altitude clouds strato-

16. Types of Clouds

17. water in solid or liquid form that falls from the air to the Earth precipitation

18. four major forms of precipitation rain snow sleet hail

19. Water droplets get larger by ________ and joining with other droplets. A cloud produces ____ when the water droplets become large enough to fall. colliding rain

20. _____ forms when temperatures are so cold that the water vapor in clouds changes directly to a solid. Snow

21. _____ falls when rain passes through a layer of freezing air. Sleet

22. rain that hits the surface of an object or the ground and then freezes glaze

23. Glaze is also known as _______ ____. freezing rain

24. solid precipitation that falls as balls of ice hail

25. Hail usually forms in ___________ clouds. cumulonimbus

26. Hail is formed when _______ of air carry raindrops to higher altitudes in the cloud where they freeze. updrafts

27. an instrument used to measure the amount of rainfall rain gauge

28. Fun and Games NASA Cloud Tutorial Moisture in the Atmosphere Clouds in Art Test your ability to identify different types of clouds found in famous paintings. Scroll down to the bottom of the page. Click the “Clouds in Art” link and then “Clouds in Art Interactive.” Water Cycle Video Hail Formation Animation Cloud Animation

29. More Fun and Games Cloud Formation Animation Water Cycle Animation Cloud Matching Game More on Clouds Cloud Types Snowflake and Snow Crystal PhotographsSnowflake and Snow Crystal Photographs Vocabulary Games