1. Happy Tuesday and welcome back
Happy Tuesday and welcome back!!! You need to get out: - Your notebook - A sheet of notebook paper - A pencil, or something to write with

3. Go over the weather test
With your partner, you need to determine which answer is correct and why.
On your sheet of notebook paper, BOTH partners need to write down the answers.
The answers need to be in complete sentences and contain information as to why that answer is the correct answer.
For example.
1. The correct answer is C, sunlight is more concentrated on some places on the Earth. This is the correct answer because the question asks what the main cause of convection in the Earth’s atmosphere. Convection is the heat transfer through wind and water. The energy that causes this heat transfer is due to the sun’s radiation.

4. Air Pressure and Weather
Cyclones and Anticyclones

5. Air Pressure Review

6. Air Pressure and Weather
Cyclones
An area in the atmosphere that has lower pressure than the surrounding areas.
Air masses converge; winds spiral toward the center and up.
Rotates in a counter clockwise direction.

7. Air Pressure and Weather
Anticyclones
Areas where air diverges or moves apart and sinks. Sinking air is denser than surrounding air.
Rotates in a clockwise direction.

8. Weather and Air Pressure
Cyclones form clouds and rain when the rising air cools.
Cyclones cause stormy weather.
Anticyclones cause dry, clear weather because as the air sinks it gets warmer and absorbs moisture.

9. Severe Weather

10. Tornadoes
A destructive, rotating column of air that has very high wind speeds, is visible as a funnel-shaped cloud, and touches the ground.
1% of all thunderstorms have a tornado.
The average tornado has wind speeds between 120 and 180 km/h

11. Hurricanes
A severe storm that develops over tropical oceans and whose strong winds of more than 74 km/h spiral in toward the intensely low-pressure storm center.
At the center of the hurricane is the eye, which is a core of warm, relatively calm air with low pressure and light winds.
Hurricanes can vary in size from 160 to 1,500km and can travel thousands of kilometers.

12. Hurricanes
Hurricanes get their energy from the condensation of water vapor.
Moisture is added to the air through evaporation from warm water which eventually condenses and gives the hurricane more energy.

13. Severe Weather Safety Tornado Flood
Watch- an alert that a tornado may happen
Warning- a tornado has been spotted
Go to a basement/cellar or a windowless room in the center of the building; outside lay in a deep ditch
Flood
Find a high place to wait out the flood; stay out of floodwaters.

14. Hurricane Thunderstorm Safety
Have a disaster supply kit, evacuate if necessary, cover windows with plywood
Thunderstorm Safety
Stay away from water
If you are outside stay away from trees and crouch down