Books in Science Matters: Simple Machines series

Presents a look at pulleys, explaining how these simple machines work and describing some common examples, such as clotheslines, flagpoles, and cranes.

Discusses how rainbows form and explores their different types, colors, and folklore.

Introduces the principles of wheels and cranks as simple machines, using examples from everyday life.

"A foundational look at wheels and axles, explaining how these simple machines work and describing some common examples, such as doorknobs, that have been used throughout history"--Provided by publisher.

Introduces the principles of screws as simple machines, using examples from everyday life.

Describes different kinds of storms, explains how they form, and discusses how they are studied.

Explains how screws work and demonstrates how they are used to lift, grip, move, and squeeze objects in everyday life.

Readers learn how this simple machine makes it easier to move things to different levels. They learn how flatter slopes use less effort than steeper slopes. By the end of the book, readers know the difference between complex and simple machines and how inclined planes are used in everyday life to make lifting and lowering objects easier.

Explains how wedges work and describes some common examples, such as shovels, teeth, and knives.

Describes the various causes of water pollution, its negative effects on animals, and why it continues to spread.

How are a jack-in-the-box, door lock, and umbrella alike? How can a spring help you weigh a fish you've just caught? How can springs help you get somewhere on time? What kind of spring can lift you in the air? This book shows you how different kinds of these simple machines are all around you to make your work and play easier.

"A foundational look at wedges, explaining how these simple machines work and describing some common examples, such as shovels, that have been used throughout history"--Provided by publisher.