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Name: ______________________________ _____________ Period: FRONTS 1. Why don’t air masses mix easily? They don’t mix because they have different temperatures and therefore, different densities 2. These areas where the air masses meet, but do not mix are called __front____. 3. Name the four kinds of fronts. a. b. _cold front_________ c. _____occluded front_______ __warm front_______________ d. _stationary front_______ 4. Which front involves a rapidly moving cold air mass colliding with a slow moving air mass? __Cold front (the cold air is doing the moving)______ 5. What will cold air do? Cold air will stay low to ground and push up the warm air. 6. What will happen to the warm air? The warm air will rise up 7. If there is a lot of water vapor in the warm air _rain___ or __snow___ will fall. 8. After this front passes through an area, what can of weather will there be? After a cold front, the weather is dry and clear. 9. What kind of front involves a warm air mass moving rapidly and colliding with a slow moving cold air mass? __warm front (because the warm air is doing the moving.____ 10. What will the warm air do? _The warm air will move up over the cold air because it is lighter.___ 11. If the warm air is humid, what will form along the front where the warm and cold air meet? rain 12. If the warm air is dry, __________________ ___________________ form. 13. Warm fronts move more ___slowly______ than cold fronts. 14. After a warm front passes through an area, the weather is likely to be _humid___ and _cloudy_______________. 15. In winter, warm fronts bring _blizzards (they move slowly)________. 16. When a warm air mass meets a cold air mass, but neither one has enough force to move the other, this front is called a __stationary____ front. 17. What happens in the area where the warm and cold air meet? A front is formed whenever air masses meet. 18. Which front involves a warm air mass caught between two cooler air masses? occluded 19. What kind of weather will this front bring? rain Identify each front below. Type of front: __cold front______ Weather as front passes through: ___heavy rain for a short period (1-2 days)_______ Weather after the front passes: ___clear and dry___ Type of front: ___warm front__ Weather as front passes through: ___drizzle for several days______ Weather after the front passes: ___humid and cloudy_______ Type of front: __occluded____ Weather as front passes through: __rain____ __________________________ Weather after the front passes: ___clear__ __________________________ Short Answer: Write a paragraph, using good sentences and grammar. Explain what happened when we heated the air in the flask and caught it in the balloon. Be sure you describe: How and why volume is changing as it gets heated How the speed of the molecules are changing How the density is changing.