"Describes what forces are and how motion works through humor and core science content".

"Describes what matter is and how it works through humor and core science content"--Provided by publisher.

This book in the Primary Physical Science series is full of surprising facts and hands-on activities to help kids explore solids, liquids and gases.

This stimulating and accessible volume offers readers a fascinating view of a force known as gravity. Readers examine many scientific concepts, including Newton's laws of gravity, mass and gravitational forces, galaxies, satellites, Earth's solar system, centrifugal force, tides, and erosion. Vocabulary boxes provide additional guidance to readers, and the "Compare and Contrast" and "Think About It" sidebars give students opportunities to ponder concepts...

In this engaging text, readers are introduced to basic concepts of energy and where it exists all around them, right down to matter and the atom. Fact boxes bolster vocabulary words, while "Compare and Contras" and "Think About It" boxes stimulate thinking, reading, writing, and discussion. This illuminating volume supports Common Core Science Standards, evaluation of evidence, understanding scientific theories, and connecting and relating knowledge....

We encounter friction in our lives every day-at home, in school, at work, and at play. Readers are introduced to friction, its characteristics, and how it works in the world around us. Through clear explanations, concrete examples, and attention-grabbing photos, the author shows how this physical force operates and how it can work to both our advantage and disadvantage. Readers will be fascinated to learn the role friction plays in nature, in sports,...

"What would happen if gravity didn't exist? People and objects would float into space! With this basic introduction to gravity, young readers will discover how gravity works and how it affects everything in our world and beyond"--

A close-up look at electricity and magnetism through activities.

"The air around us is made up of gases. We breathe in some gases. Some gases help balloons float! With age-appropriate critical thinking questions, young readers will learn all about the gases that surround them."--

What do you call a power failure? A current event! Get it? If you don't get this joke, you need this book! It'll teach you everything you need to know about the power that powers your world. The answers might shock you!