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Weather Practice Activity Name:________________________________________ Review your notes and the animations on my powerpoint regarding fronts. Fill in the blanks and answer the questions below. Cold Front Fill in the Blank Cold fronts occur when a .............. air mass replaces a ................ air mass. Possible Words: 15 degrees, cold, cold, colder, colder, cooler, clouds, drier, hail, rain, thunderstorms, tornados, towering clouds form, warm, warmer In a cold front the .............. air follows the warm air and, because .................. air is more dense, it pushes the ................ air out of its way, forcing it to rise. As the warm air rises, it becomes ................ and ................. start to form. Precipitation at cold fronts is usually heavier although less geographically extensive (50-70 km) and less prolonged than rainfall associated with warm fronts. The air behind a cold front is noticeably .......................... and ................... than the air ahead of it. When the cold front passes through, temperatures can drop more than ........................... in the first hour. Warm Front Fill in the blank Warm fronts occur when a .................. air mass approaches a .................. air mass. The warmer air ....................... and rises over the colder air. .................fronts are usually more gentle than ..............fronts, they ...................................... and gently ..................................... over the cold air moving it out of the way. Precipitation at warm fronts is usually .............. heavy although more geographically extensive (300-400 km) than at a cold front. The ............. behind a warm front is warmer and more moist than the air ahead of it. Warm fronts bring .................... steady lighter rain or snow than cold fronts. This rain can last from a few hours to several days. When a warm front passes through, the air becomes noticeably ......................... and more ....................than it was before. The first signs of the warm front are the .............................., followed by the cirrostratus, altostratus, nimbocumulus and stratocumulus types of clouds. Possible Words: air, cold, humid, warm, warm, more, cold, less, move slowly, cirrus clouds, lifts up, warmer, settle. Weather Prediction Practice Directions: Go to the weather map link on my website under today’s date. Answer the questions below for each page. Page 2 Where are the low pressure areas on this map? Where are the high pressure areas on this map? Explain how you determined the high and low pressure areas. Page 3 What does this map tell us about the area near the low pressure areas that the previous map did not? Why do scientists use satellite maps and surface analysis maps when predicting and analyzing the weather? Page 4 Describe the motion of clouds around the low-pressure area located over northeastern North America. (The northeast is visible in the upper-right corner of the images) Page 5 What kind of weather is predicted for the central part of the U.S.? For Oregon? Washington? Skip the remaining pages. Directions: Click on the EdHeads Weather link on my website. Turn your sound really low or off. Click the big red start button once the page opens up. Click on report the weather. Complete each level. Follow the directions as you work. Describe the weather in Toledo when you are done with level 1: Describe the weather in Fort Wayne when you are done with level 2: Describe the weather in Lansing when you are done with level 3 Click on predict the weather. Complete each level. Follow the directions as you work. Describe the weather prediction for Springfield, IL when you are done with level 1: Describe the weather prediction for Kansas City, MO when you are done with level 2: Describe the weather prediction for Oklahoma City, OK when you are done with level 3: Directions: Practice predicting a weather map by clicking on the weather map predictions link on my page.