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Working With Levers 
R. Machut
We can find levers all around us. Baseball bats, crowbars, seesaws, and wheelbarrows are all examples of levers. The three classes of levers make difficult lifting jobs easier with the help of leverage. Each class of lever is set up differently, but has all the same parts. Levers are made up of a plank that pivots at a fulcrum. Your readers learn about the difference between each class of lever, where levers can be found, and how levers make many jobs we do much easier. Gr. 2-5
