friction

A simple introduction to the concepts of speed, resistance, and friction, the different measurements of speed and distance, and machines that can increase speed, such as jet engines and roller skates.

Explains the concepts of work, gravity, and friction, describes machines and different kinds of pulleys, and includes simple experiments.

Simply describes the forces of friction and other physics concepts using common toys such as bicycles and yo-yos, and includes experiments.

Describes what friction is and how it affects different objects.

Photographs and text introduce scientific concepts related to friction, explaining what friction is and what it affects, describing how people have used friction throughout human history, and providing additional facts, statistics, and a time line.

Simple text and full color photographs introduce beginning readers in kindergarten through third grade to the concept of motion, explaining what it is and how it impacts the world around them.

Describes what friction is and gives some examples of how it causes moving things to stop.

The kids from Ms. Frizzle's class learn lessons about friction and forces when they drive the Magic School Bus inside a book about physics.

Introduces readers to the science of snowboarding, the development of snowboards, and the science that makes them work.

Explores the force of friction through ten simple experiments using everyday objects.