Balloon rocket demonstrates law of motion

Tuesday, April 24, 2007

For every action, there is an equal and opposite reaction. In the next KFVS12 Heartland Science Lab, science reporter Jason Lindsey will show you how to have a "blast" with science.


* String

* Balloon

* Straw

* Tape

* Scissors


Step 1: Tie one end of the six feet of string to a chair.

Step 2: Thread the straw onto the string and tie the other end of the string to a different chair.

Step 3: Fill the balloon with air, hold the opening and attach it to the straw using the tape.

Step 4: Pull the balloon to one end of the string, let go and watch it blast off.


This experiment demonstrates Newton's third law of motion. It's called the Law of Action and Reaction. When you let go of the balloon, air rushes out of the small hole, creating a pushing force in the opposite direction.

KFVS12 and the Southeast Missourian are teaming up for science. Every Tuesday, you'll find an experiment from the KFVS12 Heartland Science Lab in the Class of 2morrow section of the Southeast Missourian. Grab the ingredients and join KFVS12 science reporter Jason Lindsey live on KFVS12 at 5 p.m. every Wednesday for a blast of science fun that might get you and your family hooked on science. More science experiences can be found at and

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