Thursday, September 27, 2012

Lesson 7

Cold fronts and warm fronts are important to know. Cold fronts form when a cold air mass catches up with a warm air mass, while a warm front forms when a warm air mass catches up with a cold air mass. Fronts occur between the boundaries of warm air and cold air masses. Warm and cold air masses have different densities. During a cold air front, cold air overtakes warm air. During a warm front, warm air overtakes cold air. That sums it up!

Homework:

 

 

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