You don't.
Japust get paper
If you mean descRibe a catapult, then here it is. A catapult is a machine that can fire projectiles at enimies. If you wish to make a simple catapult, then your wish comes true right here!!!! http://www.youtube.com/watch?v=IEtUVHvfy6g
you make a catapult!
A catapult is a simple machine that throws items very far. Take a plastic sppon and put a small object on it. Pull back and watch it fly, that's how a catapult works
A CATAPULT IS A LEVER!!!
A catapult is actually a compound machine.
You don't.
lever
1
A catapult is a type of lever simple machine that uses the force of tension in a spring or elastic material to launch an object.
A simple way to build a catapult for kids to play with would be to use the seesaw as a model. A seesaw with a basket on one side to hold what is going to be flung would be perfect as a catapult.
A marshmallow catapult is a type of lever, which is a simple machine that helps to lift or move objects with less force. The lever in the catapult allows for the marshmallow to be launched by applying a force on one end.