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First you should know the materials you are allowed to use. Most catapults that are built for school projects use a plastic spoon and a mouse trap. The catapult blueprints can be found on sites at wiki answers. now below are the steps to making a good catapult!!! # Get all your materials together ( mousetrap, block of wood or shoe box, glue etc....) # Draw out a sketch of a catapult. # after you draw your sketch you need to start by glueing your mouse trap to a block of wood or a shoe box. # put your catapult basket on the mouse trap properly. # next you need to put your rubber bands on the catapult basket. # now you need to tie your string to its propar place. Thanks alot wiki answers, Drew Barber

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15y ago

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