Hooked on Science: Popping science ornament

Looking for a way to add a little science to the Christmas tree this year? Learn how to pop popcorn inside a transparent clear glass ornament.

Materials

* Transparent glass ball ornament

* Popcorn kernels

* Brown paper bag

Instructions

STEP 1: Remove the metal catch and hook. Place about two teaspoons of popcorn kernels into the transparent glass ball ornament.

STEP 2: Put the transparent glass ball ornament into the brown paper bag. Fold down the brown paper bag.

STEP 3: Place the bag into a microwave for about two and a half minutes.

Explanation

Each kernel of popcorn contains a tiny drop of water. When heated, the water expands. Once enough pressure builds up inside, the kernel burst open. The kernel will expand 40 to 50 times its original size.

Jason Lindsey is a science outreach educator with Hooked on Science. Check out his website www.hookedonscience.org for webcasts and experiments.