Page 13 - General_Knowledge_5
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Tell me how?
What makes a Pinwheel turn ?
When the wind pushes against a Do you know,
pinwheel’s blades, it turns. The that the same basic
shape of the blades makes it easy principle is applicable in
for them to catch the wind. You can windmills which is used
notice how the wind blows against to pump water, grind
the blades and makes the pinwheel grains or generate
spin faster and faster. electricity.
How to make pinwheels?
For making a Gently place the Put a shaft in the
pinwheel make a hole corner holes over holes. Attach the shaft
at each corner of a the centre one. to a handle.
square piece of paper
and in centre.
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