adult supervision make four holes
in the plastic container (two along
each long side for the rods to go
through for the wheels. Try to match
up the holes so that they are across
from each other to make them even
and that they are not too high
up so that when you put the wheels
on they will not reach the floor.
2.) Make a fifth hole at
one end of the container for the
PVC pipe to fit in. Make sure that
you do not make this hole to big;
you make it to be a tight fit for
the pipe to hold it in place.
3.) Place the two rods
through the 4 hole that you made
in the container.
4.) Place the cotton reels
or wheels on each of the 4 ends
of the rods and put some blue tack
(modelling clay) at the ends of
the rods so that the wheels do
not fall off.
5.) Place the balloon over
on end of the PVC tubing or straw
then position it is the last hole
at the end of the container with
the balloon positioned inside the
6.) Now the fun!!! Blow
up the balloon and pinch the neck
of the balloon so that the air
does not escape.
7.) Place your balloon
car on the floor so that the open
end of the balloon pipe is facing
you and let go.
How did it do?
balloon car take off and go in
a straight line?
How fast did it go?
of different things you could do
to make your balloon car go really
fast and in a straight line. Use
different containers; get some aerodynamics
going by making a pointed front to
Get a friend to make the
same type of balloon car and have
fun racing them.