Grade 2 · Science · Lesson 12

How Wind and Clouds Form

Have you ever felt the wind on your face and wondered what it is? Wind is moving air — and air moves because of differences in temperature. Clouds form because of the same water cycle we learned about in Lesson 11.

What this lesson teaches

1Explain how wind forms when warm air rises and cooler air rushes in
2Describe how clouds form from water vapor cooling and condensing
3Name the three main cloud types — cumulus, stratus, and cirrus

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