What do a carrot and a kangaroo have in common? They’re made of matter, just like everything else in the universe! In this book, readers in grades 4-9 will discover how we measure matter and how it changes, mixes, and reacts. These reactions make life possible! This series features a variety of science topics aligned to NGSS standards. From mixing matter to the study of sound waves, each informative book includes a glossary, comprehension questions, and an activity for home or the classroom.

What do a carrot and a kangaroo have in common? They’re made of matter, just like everything else in the universe! In this book, readers in grades 4-9 will discover how we measure matter and how it changes, mixes, and reacts. These reactions make life possible! This series features a variety of science topics aligned to NGSS standards. From mixing matter to the study of sound waves, each informative book includes a glossary, comprehension questions, and an activity for home or the classroom.

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? In this book, readers in grades 4-9 will learn about light waves and light’s properties and how people–and animals–manipulate light for their own purposes. This series features a variety of science topics aligned to NGSS standards. From mixing matter to the study of sound waves, each informative book includes a glossary, comprehension questions, and an activity for home or the classroom.

Living on a world as vast as Earth, it can be easy to forget that our planet is just a tiny speck in a massive universe filled with planets, moons, stars, asteroids, comets, dark matter, and maybe even alien life! In this book, readers in grades 4-9 will learn about Earth’s place in the Milky Way and the larger universe, and how humans are learning about the endless frontier of space. This series features a variety of science topics aligned to NGSS standards. From mixing matter to the study of sound waves, each informative book includes a glossary, comprehension questions, and an activity for home or the classroom.

Squeak! Grrr! CRACK! Shhh! Our world is filled with sounds big and small, pleasant and annoying. But how is all that sound created and what can it do? In this book, readers in grades 4-9 will learn how sound travels and the many roles it plays in our world. Sound helps us communicate, but it can do so much more. You might be amazed at how powerful sound waves can be when they let us see into the human body, set off a massive avalanche, or discover an ancient sunken ship. This series features a variety of science topics aligned to NGSS standards. From mixing matter to the study of sound waves, each informative book includes a glossary, comprehension questions, and an activity for home or the classroom.

What will the weather do today? In this book, readers in grades 4-9 will learn about ways people have developed to predict the weather, from looking at the sky to running models on a computer. Temperature, pressure, and wind speed are among the factors that determine whether to look out for sunshine or a tornado. Weather prediction not only helps you plan your day, it can even save lives! This series features a variety of science topics aligned to NGSS standards. From mixing matter to the study of sound waves, each informative book includes a glossary, comprehension questions, and an activity for home or the classroom.

Energy flows all around you. It warms the air and powers our machines. In this book, readers in grades 4-9 will discover how power from the sun journeys to Earth’s surface and back out to space. The sun’s energy can be reflected, absorbed, used by plants and animals, given off, or trapped to warm the atmosphere. Learn how heat in the atmosphere is rising and what people can do about it. Earth’s energy flow affects every living creature on the planet—including you! This series features a variety of science topics aligned to NGSS standards. From mixing matter to the study of sound waves, each informative book includes a glossary, comprehension questions, and an activity for home or the classroom.