Provides step-by-step instructions for activities demonstrating physics concepts and scientific explanations of the concepts presented. Activities include making defying gravity, making sticks disappear, and help a ping pong ball float. Includes color photographs, a glossary, and further resources.

Provides a simple introduction to the physics of golf, from torque and lift to swinging and twisting. Includes a text-related activity, a glossary, resources for further information, and color photographs.

Explores physics concepts that relate to baseball, such as momentum and trajectory. Includes a momentum comprehension activity, glossary, index, and resources for further information.

Examines some of the scientific elements that go into the sport of soccer, discussing the physics of inertia, friction, and force and how they help athletes play the sport.

Explores the idea of time travel, and presents facts and myths surrounding the science behind the concept. Includes a timeline, a glossary, resources for further information, and color photographs.

Why does the rain fall? Why do rivers flow to the sea? The scientific theory of gravity answers these and many more questions we may have about this invisible force. This fascinating book looks at the historical controversies that surround the theory of gravity and tells the stories of the scientists who worked on the theory. It also examines how the theory of gravity was arrived at, how it was tested, and what impact the theory has had on our understanding...

Explores the concept of time and space in relation to physics.

Ya sea polvorosa o mojada, suave o flexible, en todas partes hay materia. ¡Hasta el aire está formado de materia! Mira cómo los sólidos, los líquidos y los gases cambian de forma en este libro sobre la materia.

"Millions of people visit xkcd.com each week to read Randall Munroe's iconic webcomic. His stick-figure drawings about science, technology, language, and love have a large and passionate following. Fans of xkcd ask Munroe a lot of strange questions. What if you tried to hit a baseball pitched at 90 percent the speed of light? How fast can you hit a speed bump while driving and live? If there was a robot apocalypse, how long would humanity last? In...

Beginning readers explore the important concept of comparing and contrasting objects by weight in a way that is both fun and educational. Bright illustrations featuring cartoon dinosaurs accompany easy-to-follow text that introduces early learners to the distinction between heavy and light. Readers will be drawn to the colorful pages featuring dinosaurs interacting with common objects and animals in a way that clearly shows the difference between...