Second graders discuss fulcrums and levers and identify at least two fulcrums and levers on their bodies. They also identify fulcrums and levers on animal bodies.

Second graders maneuver placement of the fulcrum on the lever to see how to lift weight most easily. They role-play as archaeologists with the task of lifting a heavy rock from the dig site. They write in science journals about what...

Students participate in a role play in which they use simple machines to do the work of retrieving their sibling from a tree which lost its ladder. They investigate how work is accomplished when an object moves in the direction of the...