Students learn that buoyancy is responsible for making boats, hot air balloons and weather balloons float. They calculate whether or not a boat or balloon will float, and calculate the volume needed to make a balloon or boat of a certain...

Read about how a stationary air front forms when warm and cold air masses meet but neither can overpower the other. Explains what its characteristics are and the impact it can have on weather conditions.

A very detailed description of air masses, how they move and interact, and what weather takes place when this happens.

A great description of the global scale circulation and heat energy. Discusses a single-cell model, a three-cell model, jet streams and more.