Air Masses Key Questions 1.What are air masses? 2.How do air masses affect weather? 3.What are the types of air masses? 4.What air masses affect North America? 5.Which type of air mass most influences Georgia’s weather?

Do Now 3/12/14 1.When the ground becomes __________ no more percolation will occur. 2.Crystal size is determined by the cooling rate of ___________ rocks. 3.The transfer of heat by waves is called _________. 4.Convection currents occur in the mantle in the section called ____________.

Do Now 3/11/14 Draw and label the layers of the soil profile.

1. What are air masses? Large bodies of air that have similar temperatures and moisture all the way through.

2. How do air masses affect weather? The movement and interaction of air masses cause changes in weather.

3. What are the types of air masses? Maritime - forms over the ocean and are wet.

3. What are the types of air masses? Continued… Continental - forms over the continents and are dry.

3. What are the types of air masses? Polar - forms over the poles and are cold.

3. What are the types of air masses? Tropical - forms near the equator and is warm.

cP = continental polar - dry and cold cT = continental tropical - dry and warm mT = maritime tropical - wet and warm mP = maritime polar - wet and cold 4. What are the air masses that affect North America?

5. Which type of air mass most influences Georgia’s weather? Maritime tropical