COMPLETE ONE WEATHER WISE EXPERIMENT TO EARN YOUR
SCIENCE FUN FOR EVERYONE: WEATHER WISE BADGE
HOW DO YOU MAKE AN ANEMOMETER?
Needle or thin nail
Lump of modeling clay
Small block of wood for your base
Foil muffin cups
Piece of cardboard
One brightly colored sticker
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Set the block of wood on a flat surface or table. This will be the base of your anemometer.
Place the lump of modeling clay in the center of your block of wood.
Stick the pencil into the modeling clay with the eraser pointed up. Mold the clay around the pencil so it is secure and straight up and down.
Cut two strips of cardboard sixteen inches long and two inches wide.
Use a drop or two of glue to fasten the two strips together in the shape of a cross.
Now push the pin or nail through the center of the cross into the eraser. The cross should spin freely.
Tape a foil muffin cup to each end of the cross making sure all of the cups are facing in the same direction.
Set you anemometer outside and begin documenting the wind speed each day.
To measure the wind speed for this demonstration, use the stopwatch to count the number of rotations per minute.
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