What will the weather do today? In Science Masters: Weather Prediction, readers 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, but it can also even save lives!
In Science Masters: Sounds Waves, readers 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 or discover an ancient sunken ship. 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 Science Masters: Mixing and Measuring Matter, readers will discover how we measure matter and how it changes, mixes, and reacts. These reactions make life possible! What do a carrot and a kangaroo have in common? They’re made of matter, just like everything else in the universe!
In Science Masters: Light Waves, readers will learn about light waves and light’s properties and how people–and animals–manipulate light for their own purposes. 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?
Some planets are cold, dark, and lifeless. Not Earth! Our world is full of light, heat, and motion. What makes the difference? Energy! Energy flows through growing plants and blowing winds. It powers your body and the machines you use each day. Discover how the sun's energy travels to Earth and how it is stored and used by living things. Learn why heat in our atmosphere is rising and what people can do to control it.
In Science Masters: Earth's Place in Space, readers 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. 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!
Welcome to the exciting world of paleontology! This book is about the discovery of Tyrannosaurus rex, including information about the dinosaur's appearance, movement, and diet before it became extinct.
Welcome to the exciting world of paleontology! This book is about the discovery of the Triceratops dinosaur, including information about the dinosaur's appearance, movement, and diet before it became extinct. A massive pair of animal horns is found near the Rocky Mountains. Is it a bison—or a Triceratops?
Welcome to the ever-changing world of paleontology! This book is about the discovery of the Stenonychosaurus dinosaur, including information about the dinosaur's appearance, movement, and diet before it became extinct. A strange lizard tooth found in 1855 turned out to be one of the first dinosaurs found in the United States. In 2017, its name was changed from Troodon formosus to Stenonychosaurus.
Let's explore the exciting world of paleontology! This book is about the discovery of the Ankylosaurus dinosaur, including information about the dinosaur's appearance, movement, and diet before it became extinct. This special dinosaur was covered with armor and roamed the plains of North America. Did it live near you? Let's find out!
Let's explore the exciting world of paleontology! This book is about the discovery of Hadrosaurus, including information about the dinosaur's appearance, movement, and diet before it became extinct. Did you know that a dinnertime story led to the discovery of a dinosaur? And that strange old bones dug up behind a house became the first North American dinosaur ever seen by the public?
Let's explore the exciting world of paleontology! This book is about the discovery of the Allosaurus dinosaur, including information about the dinosaur's appearance, movement, and diet before it became extinct.
In Dangerous Jobs: Power Workers, readers will meet the people who risk their lives to bring electricity to homes and businesses around the world. Electric shock and explosions are just some of the daily dangers power workers face on the job.
Did you know the brain is the most complex organ in your body? Learn how and why scientists study the brain and how the brain affects behavior. This title supports NGSS From Molecules to Organisms: Structures and Processes.
Did you know that much climate change is caused by natural events? But how do humans influence climate change? Answer this question and learn how scientists make predictions about climate change. This title supports NGSS for Earth and Human Activity.
A region's climate affects nearly every part of animals' and peoples' lives. Learn about how humans contribute to climate change and what you can do to help limit its effects. This title supports NGSS for Earth and Human Activity.
The usual climate of an area can change drastically. But what causes climate change and how can you help protect the planet? Read on to answer these questions and others. This title supports NGSS standards for Earth and Human Activity.
Climate is an important part of every ecosystem. Even small changes in the climate can have a big impact. Learn about the affects of climate change on ecosystems and what you can do to help. This title supports NGSS for Earth and Human Activity.
Scientists around the world are working to understand our changing climate. Learn what they do and how you can help. You may want to become a citizen scientist! This title supports NGSS for Earth and Human Activity.
What we eat can help decide the future. Learn how our food sources are closely linked to climate change and what we can do to help limit its affects. This title supports NGSS for Earth and Human activity.
In Biome Beasts: Tundra Animals, readers will discover how animals survive and thrive in the treeless tundra. Tundra biomes have the harshest climates in the world. From the tiny Arctic bumblebee to the huge polar bear, every animal that lives in the Arctic or alpine tundra biome has adapted physically or socially to the harsh conditions.
In Biome Beasts: Ocean Animals, readers will discover how animals survive in saltwater biomes and the skies above them. Most of Earth is covered by oceans and seas that are home to an amazing variety of animals. Some have adapted to life in the cold, dark aphotic zone. Others live in the disphotic zone where predators attack from above or below. Still others live in the top layer, the euphotic zone, where food is plentiful but competition for it is fierce.
In Biome Beasts: Grassland Animals, readers will discover how these animals survive in prairies, steppes, and savannas around the world. Grassland biomes are home to a wide variety of animals. Whether grazing on grasses, building communities underground, or sailing overhead, animals have adapted to the challenges found in both temperate and tropical grassland biomes.
In Biome Beasts: Freshwater Pond Animals, readers will discover how these animals survive and thrive in freshwater pond biomes around the world. Life in a pond is exciting. Birds, bugs, and shrews skitter across the surface. Turtles and fish zip along under the water’s surface. Beavers, herons, and others make themselves at home by the pond’s edge.
In Biome Beasts: Estuary Animals, readers will discover how and why animals survive and thrive in these sheltered biomes. Life in the estuary is always changing. Ocean tides of saltwater flow in and out of the estuary and mix with the fresh water that flows from rivers and streams. The animals that swim or wade in the waters or make the mudflats their homes must have physical or social adaptations that allow them to live in the salty mix.
