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"Machut, Ronald, author"
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Working with levers
\"We can find levers all around us. Baseball bats, crowbars, seesaws, and wheelbarrows are all examples of levers. The three classes of levers make hard 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. In this book, readers will learn about the difference between each class of lever, where levers can be found, and how levers make many jobs we do much easier\"-- Provided by publisher.
Book
Working with inclined planes
Inclined planes make difficult moving jobs much easier. They are used to move objects from a lower place to a higher place or vice versa without having to lift that object vertically. We can slide the object up or down the inclined plane to use less force. Inclined planes are all around us and have been used for thousands of years. In this book, readers will learn about the parts of an inclined plan, why they're beneficial, and where they can be found in our everyday lives-- Provided by publisher.
Book