This engaging book describes the properties of light waves, how they move, and the way our eyes receive them. Readers will learn that we see an object when light reflects from its surface and into the eye. A link to interactive activities online plus an activity in the book allow readers to create models that explore how to redirect and block the path a light wave travels.
This engaging book describes the properties of sound waves, how they move, and the way our ears catch them. Readers will learn how sound waves travel through different mediums and be amazed by the different ways sound waves are used in real life, such as for communication with animals and deep-sea exploration. A link to interactive activities online plus an activity in the book allow readers to experiment with sound waves to achieve different sounds.
In this fascinating title, readers explore how light and sound waves transfer information. From telescopes that extend our sense of sight to satellites that help us communicate across large distances, patterns of waves transfer information in many ways. A link to interactive activities online plus an activity in the book allow readers to use what they have learned about waves to engineer wave patterns that communicate across distances.
This exciting title introduces readers to the concept of a wave and the patterns and properties common to both light and sound waves. Clear text and detailed diagrams combine to demonstrate the cause-and-effect relationships involved in the properties of amplitude, wavelength, and frequency. A link to interactive activities online plus an activity in the book allow readers to explore key concepts close up by creating their own wave models.
Engineers design bridges to help solve the challenges of barriers that block the movement of people. Young readers will learn about the steps in the engineering design process and see how different types of bridges suit different types of obstacles. They will also discover what materials are used in construction to make bridges stable. A link to interactive activities online plus an activity in the book allow readers to create bridges that stand up to the forces of extreme weather and natural disasters.
Engineers design dams to help solve the challenges of providing drinking water and electricity to people's homes. Young readers will learn about the steps in the engineering design process and see what materials are used in construction to make dams strong enough to hold up against the strong forces of water, weather, and natural disasters. A link to interactive activities online plus an activity in the book allow readers to create stable dams.
Engineers design skyscrapers to help solve the challenge of making room for a large number of people on a small piece of land. Young readers will learn about the steps in the engineering design process and see what shapes and materials are used in construction to make tall buildings stable. A link to interactive activities online plus an activity in the book allow readers to create skyscrapers that can withstand weight, weather, natural disasters—and time!
Motion is a change in an objects position. This fascinating title explains in a clear, simple way how objects are moved by a change in energy. Simple activities show young readers how energy is changed by applying a force, either by coming in contact with an object or by a force that does not touch it physically, like gravity.
What will houses look like in the future? From space stations to pod living, this innovative title examines how architects design and plan for the world of tomorrow. Readers put concepts to work when they design their own home based around a unique shape.
The grasslands of Africa are home to some of the most interesting plants and animals in the world. A Savanna Habitat uses beautiful photographs, detailed illustrations, and clear language to teach young readers all about this amazing habitat. This book teaches children about the small and huge animals that graze on the grasses, the carnivores found in the savanna and how they hunt, and how animals find food, water, and shelter on the savanna.
How are the tallest buildings built? How do the biggest boats get into the water? The crane, also known as a bridge or overhead crane, is the large machine used for these big, tall jobs. Children will learn about the different types and sizes of cranes and how they perform, how a crane is a vehicle, and why the crane provides power that people and animals cannot.
From providing the oxygen we breathe to supplying nutritious foods, this engaging title examines some of the many ways plants are essential to all living things. In addition to encouraging an appreciation for the natural world, readers will learn some personal choices they can make to help protect plants and their habitats.
Featuring stunning photographs, beautiful illustrations, and detailed text, Rainforest Food Chains examines the delicate balance of life maintained in lush Southeast Asian tropical rain forests. Children will learn how the plants and animals in a rain forest rely on one another to survive. Highlights include rainforest photosynthesis, how rainforest plants and animals have adapted to survive, and the dangers to rain forests and their inhabitants.
An Arctic Habitat provides children with an introduction to this cold, vast region. Easy-to-read text and colorful photographs help children learn about this unique habitat and how the plants and animals have adapted to the harsh environment. Young readers will learn about the characteristics of both land and water habitats in the Arctic, the plants and animals that live in the Arctic, and how animals find food and shelter in the Arctic.
Amazing photographs give young readers a fun-filled look at what makes Earth so beautiful. Topics include what are landforms, how different landforms are created, a look at land-shaperswind, water, fire, and ice, different kinds of erosion, how erosion shapes the land, and how some animals form islands.
Human negligence, engineering miscalculation, mechanical failure - human activity has been responsible for some of the gravest harm to people and the world. Thirteen famous disasters are featured is this fascinating book. Each one became well-known for the unique scientific process that led to the destruction, as well as for the structural changes and safety measures proposed in its aftermath. Topics include the Chernobyl nuclear meltdown, the sinking of the Titanic, the Russian submarine Kursk explosion, the Tacoma Narrows suspension bridge collapse, the Hindenburg airship explosion, and the Twin Towers collapse.
The natural forces of planet Earth have been responsible for some of the world's greatest devastation, such as the earthquakes and tsunamis in Japan in 2011 and the Indian Ocean in 2004. Thirteen kinds of disasters are featured in this amazing book, showing the process and science of each disaster from the action that triggered it to its dire consequences. Topics include volcanoes, earthquakes, tsunamis, avalanches, landslides, and mudslides.
Slim explores the nutritional value of the grains group in this fascinating new book. Children will learn about the long history of grain cultivation, where grains are grown today, what types of food products are made from grains (ie. pasta, rice, bread, etc.), the importance of eating whole grains, different grains grown around the world, and how much grain a person needs each day to keep healthy.
Summer is the warmest season with the most hours of daylight. Readers will learn these and other sunsational facts about summer! Detailed, full-color photographs and engaging text-dependent questions will captivate the interest of young readers.
Lily, the librarian, has started a summer reading club. Children can follow along with the club's members to learn all about bar, line, and circle graphs, as well as concepts such as data, scale, maximum, and minimum.
They say that in space no one can hear you scream... and its true! In the emptiness of space, nothing makes a noise. But on Earth... our ears are constantly pounded by sounds. Learn all about the most disgusting and dreadful aspects of sound. From flatulent whoopee cushions to glass-smashing opera singers and music-loving pigs, this book is full of yucky, painful and fascinating facts. You can get your ears tuned into some easy (and painless!) experiments, too.
From mighty castle strongholds to the buried ruins of Pompeii, this engaging title unearths ancient homes. Concepts include how and why ancient homes were built, as well as their discovery through archaeological digs.
This book tells the story of the Velociraptor, a lightweight dinosaur who used its speed to catch prey. It was only three feet (one meter) tall, but was feared for its ferocious hunting ability. It used a sickle-shaped claw on the second toe of each foot as a deadly weapon and could reach speeds of up to 37 miles (60 kilometers) per hour when chasing prey.
Taking information out of one living thing and putting it into another is what genetic engineering is all about. How do scientists do it? Why do they do it? What are the results of their experiments with these amazing genetic materials? Through colorful photos, diagrams, and stories, you can understand the basics of genetic engineering. You can even see what the future of this science holds, from Enviropigs to designer pets!
A koala lives most of its life alone, eating and sleeping high up in the eucalyptus trees of Australia, and yet it is recognized and loved around the world. The Life Cycle of a Koala looks at the life of this ancient marsupial and explains how marsupials are different from other mammals, the birth of the koala and its life in its mothers pouch, the growing koala and how it feeds, life outside the pouch but close to mother, and the dangers faced by koalas.