Heat Transfer
Conduction- Heat transfer by direct contact. Example-When you touch something hot, it feels
hot. The heat is transferred from the object to your hand.
Convection- Heat transfer through a liquid or gas. Example- Lava lamp; convection currents are
caused by heating of a liquid or gas, the liquid gas rises, then cools and falls.
Radiation- Heat transfer through space. Example-standing in the sunlight
Air Masses
1. The interactions between air masses, fronts, and pressure systems result in various
weather conditions.
2. Air Masses – huge bodies of air that form over water or land in tropical or Polar Regions.
a. Temperature and humidity conditions (for example, warm or cold air, humid or
dry air) within air masses as they form are important to the resulting weather
conditions when air masses move.
b. Humidity – is how much water is in the air.