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With seasons that last for decades, Uranus is a planet of extremes! The seventh planet from the Sun is one of the two ice giants in our solar system. From what makes Uranus an ice giant to its moons, rings, and extreme tilt, learn all about the sideways...

The third planet from the Sun, Earth is our home and the only planet we know of that holds life. Learn how Earth and the Moon orbit the Sun together, how continents form, and how the atmosphere protects. Then learn how satellites show us how Earth will...

Venus is the hottest planet in our Solar System. And it's often called Earth's twin! Discover why Venus is so hot. Then learn about Venus's volcanoes and clouds and how we use spacecraft to learn more about this amazing planet.

Mercury is the smallest planet in our Solar System. And it's the fastest planet! Learn how Mercury is like Earth's Moon. Then discover the history of exploring Mercury, what we have found on the planet's surface, and other fun facts!

This informative book is designed to help struggling readers grasp the nitrogen cycle. There are many steps in the nitrogen cycle that include difficult concepts and words: denitrification, prokaryotes, ammonia, and more. Low-level language, fact boxes,...

Did you know that about 18.5 percent of a human body's mass is carbon? All life on Earth depends on carbon. How carbon is taking in and given off through animals' breathing, the burning of fossil fuels, and more can be shown in the model known as the...

Food chains and food webs are a crucial part of life on Earth. In this educational and informative book, readers will study how all organisms in an ecosystem are connected. Some are predator, some are prey, and others are just there to help decomposition...

What happens in space has an influence on our lives. As Earth moves around the sun, the seasons on Earth change. The movement of the moon affects the tides in Earth's oceans. In this book, readers explore the cycles in the space that most affect us and...

This book for elementary readers highlights the evolution of space travel, from the very first satellite to today's plans to send people to Mars. Engaging photos and a running timeline highlight important space travel missions through history, including...

What do all the things you can see and touch in the universe have in common? Atoms! Made up of electrons, protons, and neutrons, atoms are so tiny you can't see them without special microscopes. Young readers will find out about the parts of atoms, how...

This informative book introduces young readers to wheels and axles, describing how they work, how they help people do jobs, and how they are used for fun. The book also includes a "That's Amazing!" special feature, several "Did You Know?" facts, a table...

This informative book introduces young readers to wedges, describing how they work, how they help people do jobs, and how they are used for fun. The book also includes a "That's Amazing!" special feature, several "Did You Know?" facts, a table of...

This informative book introduces young readers to screws, describing how they work, how they help people do jobs, and how they are used for fun. The book also includes a "That's Amazing!" special feature, several "Did You Know?" facts, a table of...

You are now ready to learn about the physical and chemical changes in matter, which is an introduction to chemistry. The first chapter teaches you about elements or the basic blocks of matter. Next, you will read about what is physical change and its...

It may have been a distant future when The Jetsons aired, but now the reality of autonomous machines with artificial intelligence is real. The ability of machines to "think" and "learn" fascinates everyone, but now even the most reluctant readers have a...

Sound waves allow sounds to travel to our ears, but did you know they can also be used to find things when it's too hard to see? Sonar is the use of sound waves to navigate, locate things, and measure distances--often underwater. Readers dive deep into...

When we talk about sounds, we often describe them as loud or quiet and high or low. However, there are scientific ways to measure sound, and readers learn about them in this insightful look at an important early science topic. Pitch, decibels, waves, and...

At a very early age, we learn that our ears are what we use to hear. But how does that actually work? Readers find out in this informative guide to a popular beginner science concept. As readers discover the basics of sound energy and how it travels,...

It takes skill and artistry to make music. It also takes science! Readers discover the physics behind how instruments make music in this creative and engaging introduction to basic elementary science concepts. The basics of sound waves and vibrations are...

Rainforests are some of the most biodiverse places on the planet, which means they're home to an incredible number of living things. One of the ways we can understand how those living things are connected is by mapping out food chains and food webs. As...