Chapter 23 Study Notes

1. Chapter 23 Study Notes Water in the Atmosphere

2. 1 • A cloud whose name has the prefix ____- or the suffix –nimbus is ___________. • nimbo • rain-producing

3. 2 • An instrument that measures precipitation by bouncing radio waves off rain or snow is ____________ ________. • Doppler radar

4. 3 • An instrument that measures relative humidity with two identical thermometers is a ________. • psychrometer.

5. 4 • Cloud _______ sometimes ________ and sometimes _______ precipitation. • seeding • increases • decreases

6. 5 • Clouds that begin to form at very _____ altitudes, covering large areas of sky and often blocking out the sun, are ____ clouds. • low • stratus

7. 6 • Clouds that often bring _______ are_____________. • thunderstorms • cumulonimbus

8. 7 • ______ is the process in which water _____ changes into a liquid. • Condensation • vapor

9. 8 • ________ ______ are ice and dust particles. • Condensation • nuclei

10. 9 • ________ ______ must be present in order for clouds to form. • Condensation • nuclei

11. 10 • _____ is the process by which fast-moving molecules escape from a ______ to form water vapor. • Evaporation • liquid

12. 11 • If enough energy is ______ by liquid water the water will change to a ____. • absorbed • gas

13. 12 • If the temperature stays the same and the air becomes _____ moist, the relative humidity will ________. • more • increase

14. 13 • In cloud seeding, _______ crystals are used as freezing nuclei. • silver-iodide

15. 14 • __________ _______ is the heat energy absorbed or released by a substance during a _________ change. • Latent heat • phase

16. 15 • Most _________ comes from _____ oceans. • evaporation • equatorial

17. 16 • Precipitation in the form of ____ of ice is ____. • lumps • hail

18. 17 • Precipitation that occurs when rain falls through a layer of freezing air close to the ground is known as ____. • sleet

19. 18 • _________ is the process by which a ____ changes directly into a ___. • Sublimation • solid • gas

20. 19 • Technology that can save lives by ______ people of an approaching storm is Doppler ______. • warning • radar

21. 20 • The _____ of the clouds marks the ________ _______. • base • condensation level

22. 21 • The clouds with the _____ altitude of any clouds in the sky are _____ clouds. • highest • cirrus

23. 22 • The condensation that occurs when air comes into contact with _______ and cools is called _____. • grass • dew

24. 23 • The ______ point is the temperature at which the rate of _______ equals the rate of evaporation. • dew • condensation

25. 24 • The most ______ form of solid precipitation is ____. • common • snow

26. 25 • The most _______ in the atmosphere is found over air near places like Hawaii that are ____ the equator. • moisture • near

27. 26 • The process of ____ formation that occurs when one body of moist air combines with another body of moist air with a different temperature is called ______. • cloud • mixing

28. 27 • The process that causes _____ formation when a moving mass of air meets a mountain range is called _____. • cloud • lifting

29. 28 • When the air ________ decreases, the rate of ______ decreases. • temperature • evaporation

30. Now STUDY for the TEST!!!