Weather Chapter 13 Section 1: Water in the Atmosphere 1. The movement of water between the atmosphere and the Earth’s surface is the ______________________. 2. The process by which water turns to vapor is called __________________. 3. The measurement of water vapor in the air is called ____________________. 4. ____________________________ is the percentage of water vapor in the air in relation to how much it can actually hold. 5. A ______________ is an instrument that can measure relative humidity using a wet bulb and a dry bulb. If the humidity is low, the wet bulb temperature will change rapidly. 6. ________________ is when water vapor in the air forms droplets and becomes liquid again. 7. The temperature where condensation happens is called the __________________. 8. Explain the types of clouds: a. Cirrus Clouds: b. Cumulus Clouds: c. Stratus Clouds: 9. Clouds that form near the ground are called ________________. Pg. 438 1B. 2B. 3C. Section 2: Precipitation 1. ________________ is any form of water that leaves clouds and returns to the earth’s surface. 2. Explain the types of precipitation: a. Rain: b. Hail: c. Snow: d. Sleet: e. Freezing Rain: Pg. 441 1C. 1D. 1E. Section 3: Air Masses & Fronts 1. An ___________________ is a huge body of air that has similar temperature, humidity, and air pressure at a given height. They can spread over millions of kilometers and be up to 10 kilometers deep. 2. Air masses are characterized by _____________ and _____________. 3. Explain the 4 types of Air Masses: a. Tropical: b. Polar: c. Maritime: d. Continental: 4. Explain how these air masses can be combined to describe various areas. 5. Explain how the following scenarios cause air masses to move. a. Prevailing Westerlies: 6. b. Jet Streams: c. Fronts: Explain the types of fronts. a. Cold Fronts: b. Warm Fronts: c. Stationary Fronts: d. Occluded Fronts: 7. Compare/Contrast Cyclones and Anticyclones using a double bubble map. Explain what type of weather is associated with each. Pg. 449 2C Section 4: Storms 1. A ______________ is a violent disturbance in the atmosphere. 2. A _________________ is a small storm that has heavy precipitation, frequent thunder, and lightning. a. Thunderstorms form in __________ clouds called ________________. b. They form when ___________ air is force upward along a ______________. c. ______________ is a sudden spark, or electric discharge, that happens when negative charges build up in storm clouds. 3. A ___________________ us a rapidly whirling, funnel-shaped cloud that reaches down from a storm cloud to earth’s surface. a. Over a lake or ocean, a tornado is called a ______________. b. Explain how tornados form: 4. Explain what a snow storm is and how it happens. 5. Explain what a hurricane is and how it happens.