Fronts

Cold fronts form where cold air moves under warm air.

Where do cold fronts form?

• Under cold air

• where warm air moves over cold air

• where cold air moves under warm air

Warm air is less dense than cold air.

Is warm air less dense than cold air?

• yes

• no

Warm fronts form where warm air moves over cold air.

Where do warm fronts form?

• where warm air moves over cold air

• where cold air moves over warm air

Stationary Fronts form where cold and warm air stop moving.

Where do Stationary Fronts form?

• where cold air stops moving

• where cold and warm air stop moving

A front is a boundary between air masses. There are four types of fronts. These are cold front, warm front, stationary front and occluded front.

Name one of the fronts.

• stationary front

• medium front

• high front

An Occluded Front forms when a warm air mass gets caught between two cold air masses.

When does an Occluded Front form?

• When a warm air mass gets caught between two cold air masses

• When a cold air mass gets caught between two warm air masses

A warm front brings gentle rain or light snow, followed by warmer, milder weather.

Which front can bring gentle rain or light snow?

• warm front

• cold front

• snow front