How Weather Changes

How Weather Changes?

ALEF 151

Recap

Weather Factors

ALEF 150

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How Weather Changes?

1. Explore the changes in the weather

2. Read weather maps

Key Terms

• 1- air mass:

• a large volume of air with uniform temperature, pressure and humidity.

Key Terms

• 2-pressure system

• pressure of a moving air mass

• what do H and L stands for??

Open Ended

Analyze the opposite picture:

How high and low pressure systems are different?

- Which one might cause clear sky?

- Which one has tightly packed molecules of air?

Review

ALEF 151>4th slide>questions

Multiple Choice

Which of the following is responsible for clear skies. Since they are made up of cool and dry air, there are no cloud.

• Low-pressure systems

• High-pressure systems

• Air masses

Key Terms

• 3-front 

• line where two air masses meet

• What might happen if 2 air masses meet?

Types of Fronts

Independent activity>> questions

Complete the worksheet provided in MS Teams chat referring to

ALEF 151-6^th slide

Multiple Choice

A(n) ______is a boundary where two different air masses meet.

• area

• font

• front

Multiple Choice

The front that can bring long periods of rain.

• Warm Front

• Cold Front

• Stationary Front

Take notes

Let's Wrap it up