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Measuring and shaping the invisible

Testing Wind Strength

Check: Testing Wind Strength

Shapes That Catch Wind

Check: Shapes That Catch Wind

Bubbles and Air

Check: Bubbles and Air

Module check: investigating moving air

Children fair-test wind strength, discover which shapes catch more air, and investigate bubbles as air made visible.

Children fair-test wind strength with pinwheels, discover which shapes catch the most air, and investigate bubbles — a rare moment where air briefly becomes visible.

Investigating Moving Air

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