You Need
1 Balloon
1 Hexagonal Nut ( about 1 cm diameter)
Caution!
Very small children should not do this, in case they swallow the nut.
What to Do
• Insert a small hexagonal nut inside a balloon. Make sure the nut is well away from the mouth of the balloon so it cannot be accidentally swallowed.
• Blow up the balloon and tie it shut.
• Swirl the balloon so that the nut starts rolling in a circle inside the balloon. Vary the speed and listen to the sounds you can produce.
• Try different sizes of nut.
Think about It Why does the nut make this sound?
Note to Teachers: Steve Spangler sells class kits of balloons and nuts if you wish to make this a group activity. http://www.stevespanglerscience.com/ (Screaming Balloon Kit)
Warning! The sound of a class doing this activity may drive you nuts!