Name: ____________________________________ Study Guide Chapter 2 Weather: Sections 3, 4, & 5 Study Guide Chapter 3 Weather Section 1 Answer the following questions in complete sentences. Use your notes and book to answer the questions. Water in the Atmosphere and Precipitation Section 4 Water in the Atmosphere (pages 54-60) 1. What is the water cycle? ________________________________________________________ ________________________________________________________ 2. What are the 3 steps of the water cycle? a. b. c. 3. How does the water cycle work? Use evaporation, condensation, precipitation, density, air temperature, troposphere and altitude in your explanation. ________________________________________________________ ________________________________________________________ ________________________________________________________ ________________________________________________________ ________________________________________________________ ________________________________________________________ 4. What is evaporation? ________________________________________________________ ________________________________________________________ 5. List two examples of evaporation. a. b. 6. How are humidity and relative humidity different? ________________________________________________________ ________________________________________________________ 7. What instrument is used to measure relative humidity? ________________________________________________________ 8. List the 6 steps in determining the relative humidity in a specific location. a. b. c. d. e. f. 9. Suppose the relative humidity of the air is 66% and the reading of the dry-bulb thermometer is 200C. What is the reading of the wet-bulb thermometer? Use the relative humidity table given in class to answer the question. _____________________________________________ 10.What is condensation? ________________________________________________________ ________________________________________________________ 11. List 2 examples of a water vapor condensing into a liquid. a. b. 12.What two conditions are necessary for condensation? a. b. 13.What is the dew point? ________________________________________________________ ________________________________________________________ 14.What is the difference between dew and frost? ________________________________________________________ ________________________________________________________ 15.How does fog form? ________________________________________________________ ________________________________________________________ 16.What is cloud seeding? When is it used? ________________________________________________________ ________________________________________________________ ________________________________________________________ Section 5 Precipitation (pages 61-65) 17. What is precipitation? _______________________________________________________ _______________________________________________________ 18. What are the 5 common types of precipitation? a. b. c. d. e. 19. Compare and contrast sleet and freezing rain. Compare________________________________________________________ Contrast________________________________________________________ 20. What 2 characteristics help distinguish the different forms of precipitation? a. b. 21. In the summer, what do you think happens to precipitation that begins as sleet? ________________________________________________________ ________________________________________________________ 22. What 2 instruments are used to measure precipitation? a. b. Winds, Air Masses, and Fronts Study Guide Chapter 2 Section 3 Winds (pages 46-52) 23. Unequal differences in _______________ lead to differences in _______________, which can cause ___________. Winds that occur over large areas are known as ____________ winds. Winds that occur over small areas are known as _____________ winds. 24. What instrument is used to measure wind speed? __________________ 25. It’s fairly warm but windy outside. Use the concept of wind-chill factor to explain why it may be a good idea to wear a jacket. _____________________________________________________________ _____________________________________________________________ 26. Looking at your answer to question 1, what causes the temperature differences that create the wind in a land and sea breeze? _____________________________________________________________ 27. Identify the type of local winds in diagrams X and Y below. Explain how the air moves from one area to another and why it moves that way. Diagram X: Type of local wind: ___________________________ Air moves from the _____________ to the _________ Use the words density, pressure, and heat/temperature to explain how the air moves in Diagram X. _____________________________________________________________ _____________________________________________________________ Diagram Y: Type of local wind: ___________________________ Air moves from the _____________ to the _________ Use the words density, pressure, and heat/temperature to explain how the air moves in Diagram Y. _____________________________________________________________ _____________________________________________________________ Chapter 3 Section 1 Air Masses and Fronts (pages 72-79) 28. What three characteristics are used to classify air masses? a. b. c. 29. What are the 4 major types of air masses in North America? a. b. c. d. 30. Identify the type of air mass or its temperature and humidity: Temp Humidity A continental tropical air mass is __________ and ____________ A ______________ ___________ air mass is cold and moist. 31. What are two ways air masses move? a. b. 32. List the 4 main types of fronts and draw its symbol next to the name. Name of Front Symbol a. b. c. d. 33. How does a warm front differ from a cold front? _____________________________________________________________ _____________________________________________________________ 34. Explain why a stationary front would bring an area several days of poor weather. _____________________________________________________________ _____________________________________________________________ 35. What is an occluded front? _____________________________________________________________ _____________________________________________________________ 36. Explain why an area of high pressure brings fair weather. _____________________________________________________________ _____________________________________________________________