You push a swing. Your brother pulls a wagon. Forces are at work all around you. But what exactly is a force? And how do forces act on different objects? Read this book to find out! Learn all about matter, energy, and forces in the Exploring Physical Science series, part of the Lightning Bolt Books collection. With high-energy designs, exciting photos, and fun text, Lightning Bolt Books bring nonfiction topics to life!

A ball drops to the ground. Leaves fall from a tree. Gravity is at work all around you. But what exactly is gravity? And how does it affect different objects? Read this book to find out! Learn all about matter, energy, and forces in the Exploring Physical Science series part of the Lightning Bolt Books collection. With high-energy designs, exciting photos, and fun text, Lightning Bolt Books bring nonfiction topics to life!

A rock sinks in the water. A hot air balloon floats in the air. Many objects float and sink. But what makes them move this way? And how do people use floating and sinking in their lives? Read this book to find out! Learn all about matter, energy, and forces in the Exploring Physical Science series, part of the Lightning Bolt Books collection. With high-energy designs, exciting photos, and fun text, Lightning Bolt Books bring nonfiction topics to life!...

An airplane soars through the sky. A wind gust blows through the leaves. Objects are in motion all around you. But what makes objects move? And what are some different ways that objects move? Read this book to find out! Learn all about matter, energy, and forces in the Exploring Physical Science series, part of the Lightning Bolt Books collection. With high-energy designs, exciting photos, and fun text, Lightning Bolt Books bring nonfiction topics...

Learn what heat is and how the temperatures of things change.

An introduction to electricity that defines what it is; discusses static and current electricity, sources, and uses; and includes a related activity.

A fundamental introduction to flying rescue vehicles known as helicopters, including their history, a description of their features, and how they help people in emergencies.

Learn about all the ways tractors help on the farm.

The driver starts the engine. The bike rumbles and roars. This motorcycle is on the move! What are some different kinds of motorcycles? And how do motorcycles work? Read this book to find out!