1. Heat Transfer and the Movement of Air
Lesson 4
Heat Transfer and the Movement of Air
Latent Heat

2. HEAT TRANSFER AND THE MOVEMNET OF AIR
Warm surfaces radiate heat energy and warm air above them
Warm air is less dense than cool air and has a tendency to rise creating an unstable air mass
Cool surface absorb heat energy and cool the air above them
Cool air is more dense and has a tendency to sink, creating a stable air mass
Water evaporate from heated surfaces, and the rising water vapor cools, condenses and forms clouds.

3. Latent Heat: Heat required to change one substance from one state to another

4. SOLID
GAS
LIQUID
ICE
sublimation
WATER VAPOR
condensation
WATER
freezing
LIQUID
SOLID
GAS
WATER
freezing
ICE
sublimation
WATER VAPOR
condensation

5. Vocabulary
Air Masses: Bodies of air with nearly uniform conditions of temperature and humidity
Temperature: Indicates the amount of heat energy in matter
Heat: form of energy that transfers because of temperature differences.
Stable or Unstable: An air mass is stable when its temperature does not decrease with altitude. It is unstable when its temperature decreases rapidly.