Winds.

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Presentation transcript:

Winds

What causes wind? Uneven heating of the Earth’s surface. Science Thoughts 11/27 What causes wind? Uneven heating of the Earth’s surface.

Today in class Work on 3.1, 3.2, 3.3 Read p. 47 – 54

Science Thoughts 11/28 In what direction do the winds that effect most of the USA flow? West to East

Winds foldables Global winds p 51 – Local winds p 53 Today in class Winds foldables Global winds p 51 – 3 facts and picture of each: Doldrums, trade, horse, westerlies, easterlies Local winds p 53 sea, land mountain, valley

Science Thoughts 11/29 What causes the air masses to rise and fall in the atmosphere? Density of the air changes with temperature.

Winds foldables Global winds p 51 – Local winds p 53 Today in class Winds foldables Global winds p 51 – 3 facts and picture of each: Doldrums, trade, horse, westerlies, easterlies Local winds p 53 sea, land mountain, valley

Science Thoughts 11/30 Why is warm air less dense than cold air? Molecules have more energy so moving more and need more space. Same mass, bigger volume means less density.

Severe Weather Notes Type of storm What is it? How does it form? What are the dangers? Draw a diagram of the storm Blizzard/ Winter Storm Flood Hurricane Thunderstorm Tornado Precipitation freezes and falls as snow, sleet or rain. 3 keys – cold air, moisture, lift Flooding, avalanche, ice jams Severe storm in the winter that can last for several days A rapid rise of water along a stream or low lying area Death, cars swept off road, water damage Heavy rain, dam/levee break, ice melt Organized rotating weather system, develops in tropics Heat and energy contact warm waters, wind spirals Flooding, high winds, storm surge 3 keys: Moisture, unstable air, lift. Lighting, thunder, hail Flooding, fires Violently rotating column of air extending from cloud to the ground Change in wind direction creates horizontal spinning effect High winds, trees uprooted

Complete all of chapter 3 work Complete winds foldable Today in class Weather Forecasting 3.4: page 98 – 103 Complete all of chapter 3 work Complete winds foldable

Science Thoughts 12/01 Most severe weather is caused by (high/low) pressure masses. LOW hurricane: air pulls UP moisture, Coriolis effect bends thunder/winter/tornado: warm moist air shoots up when hit by a cold front

Study for Monday’s quiz Today in class Weather Forecasting 3.4: page 98 – 103 Draw Weather Instruments Work on Investigate Study for Monday’s quiz