1. 1._____bottom layer of the atmosphere (atm layers) 2._____rise in the global temperature due to an increase in carbon dioxide caused by human activity (water cycle 2) 3._____ most energy in the atmosphere is transferred by this heat process (atm heating) 4._____ solid precipitation that is in the form of balls of ice (precipitation) 5._____reason for the seasons (seasons) Do Now

2. Key Questions 1.What is wind? 2.What causes wind? 3.What causes differences in pressure? 4.What is the Coriolis Effect? 5.What is a wind sock? 6.What is a wind vane? 7.What is an anemometer?

3. 1. What is wind? 1. Wind is moving air.

4. 2. What causes wind? 2. Wind is caused by differences in pressure

5. 3. What causes differences in pressure? 3. Differences in pressure are caused by the unequal heating of the Earth -Air at the equator is warmer and less dense so it rises, creating a low pressure area -Air at the poles is colder and more dense and it sinks and causes a high pressure area. -Pressure differences causes air to move. -Air moves from high to low pressure so it moves form the poles to the equator.

6. 4. What is the Coriolis effect? 4. The Coriolis Effect is the curving of wind due to Earth’s rotation

7. 5. What is a wind sock? 5. Windsock-cloth bag that is open at both ends and tells the direction of the wind

8. 6. What is a wind vane? 6. Wind vane-arrow on a pole that tells the direction of the wind

9. 7. What is an anemometer? 7. Anemometer-a device that measures wind speed