Slick Whistle Stick

You will need:


 * Wooden paint stirrer or small paddle
 * Hammer
 * Large nail
 * Long piece of string
 * Adult supervision

Make a hole in the narrow end of the stick. Tie the string to it and make a tight knot. Make a few holes in the opposite end. Go outside and swing stick around by the string away from people, plants, and animals.

You will hear a whistling sound from the air going through the holes moving faster than the air going around the paddle. Different sizes and numbers of holes make different sounds. You can compare the sounds by making several different whistles.