Balloon Rocket
Thursday, February 4, 2010
This experiment is to show the basic principles behind rocketry.
All you need to do this experiment is:
- a balloon
- string
- a straw
- tape
Thread the string through the straw. Blow up the balloon (this is to make sure you don't tape it too tight), and attach to straw by tape.
When everyone is in place, LET GO!
Now we measured and recorded out findings:
Mama's tape measure only goes to 12' so this was a good "living math" moment.
Our measurements:
- ~ 15.4'
- ~ 16.3'
- ~ 18.3'
As you can see, the more the balloon was expanded (the more times it was blown up), the more air it held, and the farther the Balloon Rocket traveled :D
This activity showed the children how rockets work. They carry containers filled with substances that, when ignited, produce gases. These gases escape through vents in the rear of the rocket. The gases going backward drive the rocket forward. This force demonstrates the principle of reaction.






















2 comments:
We had a kid concoctions party and we did this ~ my kids loved it! I bet Malachi would love this ~ he was too little back then to remember. I love how you tied this into rocketry! I think Mali would love to learn about space. Great job! =)
I totally marked this to look at later when I first saw it. And I'm glad I did. My kids would LOVE this!
Great science lesson.
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