Catapults

How it works*pull back the throwing arm and let go (you might have to hold the base)

Catapults!

Parts of a catapult*Base *Throwing arm*Crossbar *Something stretchy

Types*Ballista *Trebuchet*Onager *Mangonel*Slingshot *Crossbow

Sourceswww.studymode.comwww.ehow.comanswers.yahoo.com

Historical use*Used during the war to kill people

Present use*To lanch marshmellows,cucking pumpkins,andshooting random things at stuff