Whirlwind Pinwheels!
Children will design, build, and test their own pinwheels to understand how moving air (wind) can create movement. They'll observe how different designs affect a pinwheel's spin, learning about energy transfer in a fun, hands-on way.
The lesson goal is learners will discover how moving air makes objects spin and move. They will design and build their own pinwheels, experimenting with shapes to make them rotate faster, and then explain how wind energy creates motion.
What You Need
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Learning Guide
Step-by-step guidance. No preparation required.
- 1
Breakfast Breeze3 Min
- Place a napkin or feather on the table. Ask: 'What do you notice about this?'
- Ask: 'What do you think could make it move without us touching it?'
- Move on when Student identifies that moving air can make light objects move.
Photo by actually_jet on Pexels - 2
Explore & Plan: Pinwheel Power7 Min
- Lay out all the pinwheel-making materials.
- Ask: 'How do you think we can turn these into a pinwheel that spins?'
- Ask: 'What shape do you think would be best for the blades to catch the wind?'
- Ask: 'Will a bigger or smaller pinwheel spin faster? Why do you think so?'
- Move on when Student has a basic design idea for their pinwheel and can describe what they think will make it spin.
Photo by Miguel Á. Padriñán on Pexels - 3
The Invisible Pusher: Wind Power5 Min
- Ask: 'What did you observe about the air pushing things in our first activity?'
- Explain: 'That moving air has power, we call it **wind energy**. It’s like tiny invisible hands pushing things.' Ask: 'Where else do you see wind energy at work?'
- Explain: 'When something spins around a point, like a fan or a bicycle wheel, that’s called **rotational motion**.' Ask: 'Can you think of other things that use rotational motion?'
- Ask: 'How do you think the wind energy will make our pinwheel have rotational motion?'
- Move on when Student can describe wind energy as moving air and rotational motion as spinning, and provide examples beyond the pinwheel.
- 4
Pinwheel Challenge: Design & Spin!12 Min
- Cut your paper into a square. Use a ruler if you like!
- Fold the square diagonally both ways to find the center, then unfold.
- Cut along each fold line from the corner almost to the center – stop about an inch from the middle.
- Carefully bring alternate cut corners to the center and hold them there.
- Push a thumbtack through the center of the folded corners and then into the pencil eraser. Make sure it's loose enough to spin!
- Test your pinwheel by blowing on it, running with it, or using a fan. Ask: 'What do you notice about how it spins?'
- Ask: 'What could you change to make it spin faster or slower?'
- Move on when Student has successfully built and tested at least one pinwheel and made at least one observation about its spinning behavior.
Photo by cottonbro studio on Pexels - 5
Spinning Secrets: What We Learned3 Min
- Ask: 'What was your favorite part of making and testing your pinwheel?'
- Ask: 'What was the most important thing you learned about how wind makes things spin?'
- Ask: 'Where else do we see the power of wind being used in the world?'
- Move on when Student shares one key takeaway about pinwheel design, wind energy, or rotational motion.
Photo by CARLOSCRUZ ARTEGRAFIA on Pexels
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