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Inclined Planes and Wedges

From the Series Early Bird Physics

What is an inclined plane? How do you use a wedge? Using easy-to-understand examples and fun-to-do experiments, discover how these two simple machines work and make the work that you do easier. Read More →

  • Lexile: 520
  • ATOS: 3.6
  • Dewey: 621.8'11

Pulleys

From the Series Early Bird Physics

How does a pulley work? What is it? Colorful diagrams and fun-to-do experiments help you explore the many ways this simple machine can help make work easier and faster. Read More →

  • ATOS: 3.6
  • Dewey: 621.8'11

Screws

From the Series Early Bird Physics

We've all seen screws, but how do they work? Why is it easier to screw something into something than to simply push it in? With basic hands-on experiments and clear descriptions, this simple… Read More →

  • ATOS: 3.5
  • Dewey: 621.8'8

Wheels and Axles

From the Series Early Bird Physics

Of the six simple machines, the wheel and axle is probably the most recognized. But how does it help you work? Simple and fun experiments illustrate the basic concepts explained in the text… Read More →

  • ATOS: 3.3
  • Dewey: 621.8'11

Work

From the Series Early Bird Physics

What is work? You may think work is doing chores or going to a job, but you do work every time you move something from one place to another. With experiments that demonstrate these… Read More →

  • ATOS: 2.8
  • Dewey: 531'.6

Levers

From the Series Early Bird Physics

Do you know what a lever is? How can a lever help you? Through simple experiments and clear explanations, understand how this simple machine functions and how it can make the work that you do easier. Read More →

  • ATOS: 3.3
  • Dewey: 621.8'11