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.
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 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!
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.
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.
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.
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.
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.
Almost every child wants a pony, and whether children can have one or not, most love to learn about these wonderful animals! The clear text and colorful images in Ponies introduce kids to the joys and responsibilities of proper pony care. Ponies covers key topics such as baby ponies, setting up the stable, feeding your pony, proper grooming techniques, and riding your pony safely.
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.
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.
Children will love learning about plants and plant parts. Beautiful photographs and artwork in this spectacular ABC book help teach children to identify various plants and find similar examples in their own communities.
As the world's largest land animals, elephants inspire awe in all of us - an awe that has led to myths of might and memory. Despite its immense strength, however, the elephant is a timid creature that uses its power only to defend itself against predators. Kids will learn many facts about these gentle pachyderms, including the social structure of elephants, in which the female is the leader, the animal's many dexterous uses for its trunk, the history of the elephant's even larger ancestors, including woolly mammoths, and the dangers that poaching, loss of habitat, and the ivory trade pose to the elephants future.
Lush, moist, and teeming with life, rain forests are one of Earth's biome wonders. Peel back the corners of the rain forest to discover what lives within one of the planets busiest environments, from wolves and porcupines to monkeys and poison dart frogs. Learn how each organism functions within its rain forest ecosystem and how it survives in one of the most predatory biomes on Earth. Find out, too, how rain forests are found all around the world and what you can do to help protect these precious resources.
Political maps are often the first kind of maps children learn about. These maps identify the boundaries of countries, states or provinces, and cities, as well as such physical features as lakes and oceans. Detailed, up-to-date maps and clearly written text help readers understand how to use political maps to solve problems.
Rhymes talk about water and the many forms it takes in oceans, rivers, lakes, ponds, wetlandseven in the bodies of living things! Children will love the pictures that accompany the fun rhyming verses! Rivers flow from high ground to low. They carry fresh water as they go. The source of a river is where it begins. The mouth of a river is where it ends. Rivers meander in curves and bends.
Children will love the wonderful pictures in this fun introduction to the kinds of homes animals make in various habitats: Homes are in habitats, on the ground or in trees. Some are in water, in lakes, rivers, or seas. A home can be a cave, a burrow, or nest. It is a safe place for animals to rest.
