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Grades 612. Students learn there are more to levers than just seesaws and scissors as they explore first-, second- and third-class levers. This kit is a great introduction to the world of simple machines.
Lesson objectives:
Extend this lesson by having students:
Teach the fundamentals of levers, a simple machine we encounter in our everyday lives. Students construct first-, second-, and third-class levers; measure the force needed to lift a load for each class; then calculate the mechanical advantage and efficiency of each. Kit includes instructions and levers for 15 student pairs. Needed but not supplied for each pair: spring scale, meter stick, 200-g hanging mass, and ring stand and clamp.
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