How To Make An Anemometer

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STEP 1: Use the hole puncher to make two holes across from each other, in each of your cups.

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STEP 2: Push the straw through the holes so that you have two cups on each straw (all must face the same direction).

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STEP 3: Push your nail through each straw and then into the eraser of your pencil. Put the pencil into the cup.

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STEP 4: Tape the intersection of the two straws.

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STEP 5: Take outside on a windy day and see what happens! How fast is the wind moving?

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