Simple Experiments With Levers

The shovel that helps you dig a hole, the chopsticks you use at lunch, and some of the big machines we see when passing by construction sites are all examples of levers. This book takes a look at the simple machine behind these different objects, using everyday examples and kid-friendly experiments to illustrate the physics behind this fascinating simple machine. Easy-to-read text will encourage readers, while large, colorful photographs will illustrate the concepts at hand. Students will be interested to see the ways that they interact with levers on a daily basis, and further reading and websites will encourage them to seek additional information.

Pulleys are simple machines that have many uses, from lifting an injured boater into a rescue helicopter to drawing a bucket of water from a well! This book explains the science behind this helpful machine. Experiments, presented step-by-step and with photos, encourage students to engage with the pulleys in their own lives.

Examines levers, explains their functions, and suggests simple experiments to demonstrate how they work

How many simple machines do you use every day? Probably more than you realize! Machines make work easier— helping break things apart, lift heavy objects, and change the power and direction of force applied to them. In this accessible picture book, celebrated nonfiction author David A. Adler outlines different types of simple machines—wedges, wheels, levers, pulleys, and more—and gives common examples of how we use them every day. Anna Raff's bright illustrations show how simple machines work—and add a dose of fun and humor, too. Two appealing kids and their comical cat use machines to ride see-saws, turn knobs, and even eat apples. Perfect for classrooms or for budding engineers to read on their own, Simple Machines uses clear, simple language to introduce important mechanical vocabulary, and easy-to-understand examples to illustrate how we use machines to solve all kinds of problems. Don't miss David A. Adler and Anna Raff's other science collaborations—including Light Waves; Magnets Push, Magnets Pull; and Things That Float and Things That Don't.

Describes experiments involving simple machines that follow the scientific method, explores the use of levers to control motion and lift, and shows how the steepness of inclined planes affects the force needed to move something.

Introduces the principles of levers as simple machines, using examples from everyday life and demonstrates how levers work with simple activities and experiments. Includes notes for teachers and parents. Suggested level: primary.

Levers are everywhere. Readers will learn about historical and present-day uses of levers and how levers make countless everyday activities much easier. A simple experiment is included with step-by-step instructions.

Includes access code (p. 2) for an online readalong of the story.