How do you make a balloon powered car?

Answer 1

Make up the car body and turn upside down. Cut the bendy

section off the straws. Tape the straws onto the base of the

body making sure they are parallel and about 2cm from the front

and back edges.

2. Push a white stick through each straw. Then push a wheel onto

each end of the sticks. The white sticks should be able to spin

freely with the wheels firmly attached.

3. Blow up the balloon a few times to stretch it. Fit the balloon over

the end of one of the straw off-cuts and secure in position with

tape. This is for blowing up the balloon when the car is finished.

4. Very carefully make a hole in the back of the car body using the

pencil. Push the straw that is fixed to the balloon through the

hole in the car body so that the balloon is inside the car body

and the straw is sticking out of the back. Use tape, plastercine

or blu-tac to fix the straw into position.

5. Blow up the balloon, pinch the straw to stop the air escaping

and place the balloon car on a smooth surface.