● What does a car need to move and be easy to
drive?
Try to answer these questions:
● Which objects from our closest area can we
use to build a vehicle – what can be used as wheels,
as a vehicle’s cabin, as an engine?
Try to answer these questions:
● If we want our vehicle to move what criteria
must be met?
Try to answer these questions:
● What does give a power to the car that it
moves?
● What does the engine need to get this
power?
● What can we use as engine in the car we will
build? What will be the fuel?
Cut a rectangular shape out of cardboard which will be used as a chassis
Attach a plastic straw to the chassis in the middle of it to have two endings of the straw sticking out of the rectangular shape
Make small holes in each plastic bottle cap
Stick the wooden sticks to the down part of chassis ensuring that the sticking-out-part has the same length from each side (if the sticks are too long cut off some part of it)
Insert wooden sticks inside the holes of bottle caps at each end. Check if they rotate freely and there is nothing what can block them from moving. Check using your hand if the vehicle moves forward and backward.
Inflate the balloon, place a straw attached to chassis inside it and tape balloon’s entrance with adhesive tape to not let the balloon to deflate. Remember also to cover the other ending of the straw.
When all of the elements are ready you can place the vehicle on the empty area and open the other ending of the straw to start the air flow. Because of the strong air flow your vehicle should move.
Organize a car race using the built
vehicles. You can compete against each other to see
which vehicle is the fastest.
