Halloween science: How to make screaming balloons

Did you know you can create some spooky sounds by using a hex nut and a balloon?

Materials:

* Balloon

* Hex nut

Instructions:

STEP 1: Push the hex nut through the small opening of the balloon.

STEP 2: Blow up the balloon and tie off the opening.

STEP 3: Place the tied off part of the balloon in the palm of your right hand, squeeze the balloon, and then move your hand in a circular motion.

Explanation:

The unique shape of the hex nut vibrated the walls of the balloon creating the spooky sounds.

Jason Lindsey is a Science Outreach Educator with Hooked on Science. Check out his website Hooked On Science at hooked onscience.org for webcasts and experiments that might get you hooked on science. Send him your science questions at jlindsey@hookedonscience.org. More science experiments can be found at www.semissourian.com.