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Earth Science: Unit 3 Test Review Directions: Answer as many questions as you can WITHOUT looking at your notes. Put stars by the blanks you don’t know. 1. What are the two factors used to identify climate? Temperature and precipitation. 2. What is the dew point? the temperature at which the rate of condensation equals the rate of evaporation 3. What must be present for clouds to form? Condensation nuclei 4. Define air mass. A large area of air with a consistent temperature and moisture level throughout. 5. What kinds of clouds often bring thunderstorms? Cumulonimbus 6. What might happen if enough energy is absorbed by liquid water? A. B. C. D. 7. What are isobars? 8. Which part of the station model represents cloud cover? 9. Students plan to use several rain gauges to compare average montly rainfall on Virginia’s Coastal Plain and Piedmont regions. What is the independent variable in this scenario? 10. Match the weather instrument with what it measures. A. Barometer B. Anemometer C. Psychrometer condensation will occur the water will never change the water will change to ice the water will change to a gas** Isobars are lines of equal pressure on a weather map. The location of the rain gauges would be the independent variable. 1. Humidity C 2. Air pressure A 3. Wind speed B Earth Science: Unit 3 Test Review 11. Identify each type of air mass A. B. an air mass that originates in southern Atlantic and Pacific areas and brings warm, moist air mT an air mass that originates in North Atlantic and North Pacific areas and brings cold, moist air. mP 12. Describe the weather conditions at point W. Cool and dry. 13. How does volcanic activity affect the atmosphere? 14. Define convection, radiation and conduction 15. C. D. an air mass that originates in Canada and brings cold, dry air cP an air mass that originates in U.S. southwest and brings warm, dry air CT by releasing gases such as water vapor, carbon dioxide and sulfur dioxide; carbon dioxide is a greenhouse gas that warms the atmosphere; sulfur dioxide can transform water into sulfuric acid (acid rain) Convection – the movement of heat through differences in temperature. Conduction – the transfer of energy through direct contact. Radiation – energy transfer through electromagnetic waves. What are the current weather conditions in the Deep South? Earth Science: Unit 3 Test Review 16. stormy. What are the current conditions in the Deep South?