Sensational Science Projects with Simple Machines

Overview

How can a 50-pound boy lift a 200-pound man? How does a wheelbarrow work? Is it easier to roll a toy truck up an inclined plane or just pick it straight up? The experiments in this book will show how simple machines work and explain some elementary principles of physical science. All you need are some simple materials, most of which can be found around your home, school, or neighborhood. So grab your marbles, wheels, and buckets and discover that physics is fantastic!
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Overview

How can a 50-pound boy lift a 200-pound man? How does a wheelbarrow work? Is it easier to roll a toy truck up an inclined plane or just pick it straight up? The experiments in this book will show how simple machines work and explain some elementary principles of physical science. All you need are some simple materials, most of which can be found around your home, school, or neighborhood. So grab your marbles, wheels, and buckets and discover that physics is fantastic!
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Editorial Reviews

Children's Literature - Ellen R. Butts
The book's premise is that doing experiments will help kids understand how machines make tasks easier. Individual chapters describe how to build and do experiments with the lever, wheel and axle, inclined plane, wedge, screw, and pulley. The first chapter explains force, friction, distance, and work--an understanding of which is necessary in order to understand how simple machines work. Each subsequent chapter begins with a short description of a device, followed by an experiment, and then an explanation. The "things you will need" are mostly everyday objects, although young scientists may have to make a trip to the hardware store with an adult. The experiments are generally straightforward; unfortunately, however, some of the explanations are confusing. The illustrations and design of the book look amateurish. There are many books of this nature for young readers; since the experiments in this volume are unoriginal and the explanations unclear, it is not recommended for purchase. Part of the "Fantastic Physical Science Experiments" series.
School Library Journal
Gr 4-6-The first title is devoted to light and seeing, mixing colors, and more. Each of 10 chapters includes an experiment, followed by an explanation of why it works, and offers ideas for devising projects to present at a science fair. For example, an experiment designed to show how light bends uses a pencil in a glass of water. Readers are then directed to find other ways to demonstrate the principle involved. The first chapter of Machines explains force, friction, distance, and work. The book then introduces levers, inclined planes, pulleys, etc. Both titles have the same introductory paragraphs about what science-fair judges look for and lists of safety rules that address the need for adult supervision. Large colorful, cartoonlike drawings complement the texts. Most of the materials required should be readily found at home or at school. These books may not be entirely accessible to children without some background in the principles discussed, but they offer solid information.-Maren Ostergard, Bellevue Regional Library, WA Copyright 2006 Reed Business Information.
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Product Details

  • ISBN-13: 9780766025851
  • Publisher: Enslow Publishers, Incorporated
  • Publication date: 1/28/2006
  • Series: Fantastic Physical Science Experiments Series
  • Format: Library Binding
  • Pages: 48
  • Age range: 8 - 11 Years
  • Product dimensions: 7.50 (w) x 9.10 (h) x 0.30 (d)

Table of Contents

Introduction 4
1 Force, Friction, Distance, and Work 6
2 First-Class Levers 10
First-Class Levers: An Explanation 12
3 Second-Class Levers 14
Second-Class Levers: An Explanation 16
4 Third-Class Levers 18
Third-Class Levers: An Explanation 20
5 The Wheel and Axle 22
The Wheel and Axle: An Explanation 24
6 Wheels, Bearings, and Friction 26
Wheels, Bearings, and Friction: An Explanation 28
7 Inclined Planes 30
Inclined Planes: An Explanation 32
8 The Wedge 34
The Wedge: An Explanation 36
9 The Screw or Bolt 38
The Screw or Bolt: An Explanation 40
10 Single Pulleys 42
Single Pulleys: An Explanation 44
Words to Know 46
Further Reading and Internet Addresses 47
Index 48
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