red balloon
first take paper and make your glider attach a balloon
good question
destroy it
you can write about Newton's third laaw of motion
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You can make your balloon-powered car go faster by increasing the amount of air you blow into the balloon, ensuring the wheels are properly aligned and have low friction, and making the car as lightweight as possible. Additionally, consider utilizing a longer and narrower design for better aerodynamics.
tap your heels 3 times. it should all work out for you :D
use bigger wheels and use less friction on the ground make it weigh less
What I did for a 4th grade, was a balloon-powered car. For older grades you want to make it cool and a different project.
He would heat it.
Simple...hot air rises..
Make the balloon capable of further expansion. That way as the balloon rises and the barometric pressure falls the balloon can expand and allow its internal gases to achieve a constantly decreasing density.