Engineers know that there is always more than one possible solution to a problem! This interesting title uses accessible text and relatable examples to explain how engineers test and compare different solutions to determine which solution is best.
What does it feel like to live in a pressurized metal tube 1000 feet (300 m) under the ocean, and only steps away from lethally dangerous nuclear fissile material? Nuclear submariners know. In wartime, theirs is an unenviable task - to hunt other submarines and destroy them before they themselves can be hunted down. Nuclear power allows these submarines to operate at high speed for long durations without having to surface frequently. Nuclear submarines never need to be refueled throughout their 25-year life-span. This fascinating book looks at what life is like for the men who live and work together on these boats; what the inside of a nuclear submarine looks like and how it works; how the sea gives the submariners all the air they need to breathe while under water; and how they "fight" the boat while they hunt other submarines.
Police officers are the protective barrier standing between the public on one side and lawlessness on the other - the so-called "thin blue line." A high-stress job, officers face daily interactions in stressful situations where the element of risk is always lurking. An officer's main duty is to maintain law and order within a community, which means they are regularly face to face with citizens and out patrolling the streets. This book looks at the duties of police officers in crime prevention, the apprehension of offenders, and emergency situations.
When the heat gets turned up in a conflict, support helicopter pilots are called upon to bring in additional troops and equipment or even provide battle support from the air. In modern warfare, the helicopter's agility and hovering ability have made it indispensible to the army, navy, air force, and marines for tactical support. This book describes the different missions support helicopter pilots undertake and the dangerous circumstances they must usually fly under.
Piloting experimental aircraft is more dangerous than most other types of flying. Test pilots are generally military aviators who fly new and modified aircraft, allowing the results to be measured and the design to be evaluated. In the 1950s, test pilots were being killed at the rate of about one a week, but the risks have shrunk to a fraction of that, thanks to the sophistication of aircraft technology, better ground-testing, and simulation of aircraft performance. Despite their image as fun-loving daredevils, these pilots have to be ruthlessly precise and professional when flying. This intriguing book looks at what type of people become test pilots, how they train, what the job includes, how it feels to be the first person to fly a new design, the aircraft they fly, and how they analyze and report on each flight.
These army pilots fly the most demanding helicopter in existence, a machine so complex to operate that its known as Riding the Dragon. Only 3% of existing army helicopter pilots qualify to fly it. Trainees have to learn to train their eyes to work independently of each other while the right eye sees flight and weapons information in the helmet's monocle, the left eye is free to look outside the aircraft and scan for threats and other obstacles. And, flying the helicopter is only half the battle - its purpose is to provide firepower from the air to protect soldiers on the ground. This book lifts the lid on what life is like for these men and women: their training; the aircraft; the missions, and what its actually like to be under fire while flying.
The backbone of any army, infantry soldiers seem to get all of the action but none of the glory. Trained for the very physical and aggressive work of engaging the enemy on the ground, the infantry's main focus is to advance on the enemy, take control of territory, and hold it. Not surprisingly the infantry tends to take high casualties because they are usually sent to the hottest spots in combat. This book looks at the high-risk jobs of the infantry soldier, including attack, defense, patrol, and intelligence gathering.
Spotlight on South Korea introduces children to the country of South Korea in Asia whose nearest neighbors are China, Japan, and North Korea. South Korea is mostly mountainous, and there are about 3,000 islands off its coasts. Most South Koreans have moved from the countryside to the cities, especially to its capital Seoul, the country's largest city. Young readers will learn about South Korea's history, the daily life of Koreans, as well as about Korean festivals and culture.
This informative title introduces readers to four of the states that make up the Southwest region of the United States: Arizona, New Mexico, Oklahoma, and Texas. The Southwest has many people of Hispanic descent as well as Native-American people from nations such as the Navajo, Hopi, Zuni, and Apache. Readers will discover how the climate, population distribution, history, and culture of this region make it distinct.
Age-appropriate text and vibrant photographs describe environmentally conscious changes that can be made in the classroom and throughout the school. From tips to saving paper to environmentally-conscious crafts, this fact-filled book makes the grade!
Spotlight on France introduces children to the country of France in Europe. France is famous for its beautiful countryside, its history of powerful rulers, and its exciting cities. France is also known for its delicious foods, fabulous fashions, and famous artists such as Monet and Renoir. This informative book also looks at France's major holidays and celebrations and the favorite pastimes of children.
Spotlight on Kenya introduces children to the tropical country of Kenya in Africa. As you travel across Kenya, the landscape changes from white beaches at the Indian Ocean to wide open grasslands, called savanna, where wild animals roam, to the highlands, where most of Kenyas people live. Young readers will learn about the history, cities, and cultures of this fascinating country, including the music, dance, and celebrations of the Masai people. They will delighted by the photographs of savanna animals such as lions, cheetahs, elephants, and hippos.
Yellowstone National Park is made up of several kinds of habitats, lakes, canyons, rivers, and mountains. What makes Yellowstone National Park so exciting, however, is that it sits on top of the caldera of a volcano! The caldera is an enormous active volcano that has erupted in the past with great force. The Old Faithful Geyser is evidence of the volcanic activity in this amazing park. Yellowstone was established as the first national park in 1872. Hundreds of species of mammals, birds, fish, and reptiles live in this huge habitat, some of which are endangered or threatened. Grizzlies, wolves, and huge herds of bison and elk live in the park. The vast forests and grasslands also include unique species of plants. Through magnificent photographs and easy text, children will learn about the volcanic nature of this super habitat, the story of how wolves were reintroduced here, and how a huge ecosystem can work when left undisturbed.
Africa has more countries than any other continent. In Explore Africa, children learn many facts about Africa's countries and its geography. Each page is beautifully laid out. The book includes several continent maps so readers can relate the text and photographs to their location on the continent. This essential book looks at Africa's mountains, including Mount Kilimanjaro, and valleys, Africa's waterways including the longest river in the world, African culture, and popular tourist destinations in Africa.
This informative and easy-to-read new book introduces children to the fascinating and diverse continent of Asia - the largest continent on Earth! Full color photographs and detailed maps highlight Asia's major regions - Northern, Central, Western, Eastern, Southern, and Southeastern Asia. Simple text describes the, major Asian bodies of water and landforms, the climate in Asia, life in Asian forests, steppes, deserts, and other biomes, Asia's natural resources, and the differences between rural and urban areas.
The world's largest tropical rain forest and the world's longest mountain range are both found on the continent of South America. This beautiful new book introduces children to the fascinating physical and social geography of South America. Children will be eager to learn about the countries in South America, how South America is connected to North America, South America's major landforms and bodies of water, the people, plants, and animals in the rain forests, grasslands, and deserts, urban and rural life, and South America's natural resources.
In the United States, many cultures means many celebrations. This colorful book explores the many civic and Christian holidays, festivals from other religions, and popular events that Americans enjoy.
The United States of America is a big, beautiful country. United States the Land celebrates the third-largest country in the world. Part of North America, the United States is bordered by Canada, Mexico, and two oceans. Young readers will learn about the history of the United States, as well as about the climate, agriculture, and natural landforms across the country's various regions.
A large part of the population of the United States was built on immigration from around the world. This fascinating book looks at the people, traditions, and ways of life today of both Native Americans and the many cultures that have landed on the shores of the United States.
Learn the history behind this national holiday, celebrating the birth of a nation by Canadians from coast to coast. See the many different ways in which this multi-cultural nation recognizes this occasion with fireworks, music, food, a day-off work, and other special events.
Readers get a behind-the-scenes look at photographer Marc Crabtree as he introduces young readers to the exciting world of photography. Young readers will enjoy learning about the different tools and equipment Marc uses in his studio.
Spend a day with police officer Jenn Gellel. Jenn starts her day at home with her husband, Brad, and their dog, Zeke. Follow her to work at the police station, on patrol in a police car, and peforming jobs such as directing traffic. By following Jenns daily activities, students will learn how police officers help people and keep them safe.
Welcome to the exciting world of television! Follow Kevin Faibish, a news camera operator, as he films the news on location at a soccer tournament and in the studio. Kevin also introduces young readers to the tools of his trade.
Meet Doctor Ravi Ahluwalia. From a family health clinic to a soccer field, Ravi's work as a doctor takes him to different places. This inviting narrative shows how Ravi cares for people and helps keep them healthy.
In this engaging new title, readers follow firefighter Ruth Lancashire during a day at the fire station. Action-filled photographs and accessible text introduce readers to the tools firefighters use to fight fires and how firefighters help keep our communities safe.