"Carefully leveled text and vibrant photographs introduce early readers to the concept of opposites by encouraging them to compare things that are hot with things that are cold. Includes tools for teachers, a table of contents, words to know, and an index."--

A crack of lightning. The blue glow of a phone screen. A blinking firefly. The blazing sun. A camera's rapid flash. No matter the source, light travels in waves, and it does so at a speed faster than anything else in the universe. But what is light, anyway, and how do we study it?

"A fun and engaging picture book explaining Einstein's theory of relativity."--

Shows readers just what sound is, how it travels, and how our ears understand the sounds that surround us all.

Introduces simple machines, including screws, levers, wedges, and pulleys, describes how each makes everyday life easier, and provides activities demonstrating these machines in action.

"Motion is all around us. Learn how it is used in art, technology, and engineering. Five easy-to-read chapters explain the science behind motion, as well as its real-world applications." --

A look at how electricity travels, how it is stored in batteries, and the many different types of power plants that produce the electricity needed to light our homes, schools, and businesses.

"A photographic exploration into the beauty and magic of light"--Provided by publisher.

"Everything in the universe -- including light, water, air, planets, buildings, animals, and people -- is made of minute particles. Quantum physics is the science of these tiny particles. The discoveries made in quantum physics have been the driving force behind technological advances ranging from cell phones to lasers and medical imaging. Without it, most of the technology we take for granted simply wouldn't exist"--Cover.