- Discover the cause of wind
- Write a poem about weather
- Thermos full of hot water
- Empty soda bottle
- Writing paper or student journals
- You may wish to conduct this experiment yourself before class time. That way you will be familiar with the process when you demonstrate the experiment for your class.
- Fill the thermos with hot water prior to beginning the experiment.
Step 1: Review with students what they learned about the wind yesterday.
Step 2: Explain to them that today they will learn what makes the wind blow.
Step 3: Demonstrate what makes the wind blow by following these steps:
- Place the balloon over the mouth of the soda bottle.
- Pour a few inches of hot water from the thermos into the pan.
- Set the soda bottle in the hot water. After a few moments, the balloon will stand straight up as the air inside the bottle warms and expands into the balloon.
Step 4: Explain that as the sun warms air around the earth, the air rises. Colder air moves in to fill the vacant spot.
Step 5: Ask students what the moving air is called. (Wind!)
Step 6: Ask students what a windy winter day feels like. Encourage them to use degrees of temperature to describe a cold and windy winter day.
Step 7: Have students write a diamond-shaped poem about the wind or another element of winter weather. Explain that the first line of the poem is the one-word subject of the poem (for example, "wind"). The second line consists of two adjectives describing the subject ("cool, gusty"). The third line contains three verbs telling what the subject does ("blows, sweeps, howls"). The fourth line expresses, in two words, the writer's feelings about the subject ("wonderful wind"). The last line repeats the first.
- Read Feel the Wind by Arthur Dorros aloud to the class. This book explores the cause and effect of wind.
- Read I Wonder Why the Wind Blows and Other Questions About Our Planet by Anita Ganeri aloud to the class. This book answers common questions children have about weather.
- Was the estimated time sufficient to complete the lesson?
- Did students understand that the change in air temperature causes the wind to blow?
- Did students express their understanding of winter weather in their diamond-shaped poems?
- Group assessment will take place by asking students to respond orally to questions about what causes wind.
- Students' diamond-shaped poems should be reviewed and discussed.