17-2

Front

What is a tornado?

Back

A tornado is a rapidly rotating column of air that extends from a thunderstorm to the ground.

Front

What type of air masses form over oceans?

Back

Maritime air masses form over oceans.

Front

How does air move in a high-pressure system?

Back

In a high-pressure system, air moves towards the center.

Front

What is relative humidity?

Back

Relative humidity is a measure of the amount of water vapor in the air compared to the amount needed for saturation at a specific temperature.

Front

What is an occluded front?

Back

An occluded front occurs when a cold front overtakes a warm front, lifting the warm air off the ground.

Front

What is a stationary front?

Back

A stationary front is a boundary between two air masses that are not moving, leading to prolonged weather conditions.

Front

What is a cold front?

Back

A cold front is the leading edge of a cooler mass of air that replaces a warmer mass of air.

Front

What is a warm front?

Back

A warm front is the leading edge of a warmer mass of air that replaces a cooler mass of air.

Front

What is the difference between maritime and continental air masses?

Back

Maritime air masses form over water and are moist, while continental air masses form over land and are dry.

Front

What weather is typically associated with a warm front?

Back

Warm fronts typically bring gradual increases in temperature and prolonged precipitation.