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"Levers Juvenile literature."
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Levers in action
Introduces levers, explains how these simple machines work, and describes some common examples.
Book
Pressing down : the lever
\"Pressing Down explores the benefits and uses of the lever. RobbO and RobbEE learn how a lever can be formed in three different ways to do different kinds of work--lift and lower, separate, and open.\"-- Provided by publisher.
Book
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
Making machines with levers
A clear and straightforward introduction to the science and technology of machines, showcasing the parts of each machine, how each machine works and how they are used in the world around us.
Book