1. Take one
end of the string and tie it to
a tree or a post.
2. Take the straw and thread
it onto the other end of the string.
3. Make sure that the string
4 . Move the straw to one end
of the string
5. Blow up the balloon and hold
the opening so that the air does not
6. Place the mouth of the balloon
so that it is pointing toward the
closest tree or post.
7. Make sure that the balloon
is parallel to the string/straw. Place
two pieces of tape over the straw
and balloon making sure that the balloon
is attached securely.
8. Release the balloon.
balloon and straw take off across
the string until the balloon is
When the balloon is
released the compressed air rushes
out into space and the reaction
is to drive the balloon forward
like a rocket.
Sir Isaac Newton’s
Third Law, “For every
action (force), there is an
equal and opposite re-action."
is a good outside experiment.