Human activities have a huge impact on the Earth. Environmental engineers apply traditional engineering practices to help improve and prevent damage from humans and the waste we create to ecosystems and our environment. Readers will learn about how environmental engineering began, and the many processes environmental engineers apply to find sustainable solutions to problems. Real-life examples help students understand key concepts related to this important profession.
Lenses, lasers, microscopes, telescopeslight engineers design all these products to help make our lives easier. In this enlightening title, students explore the many uses of optics and the design process of turning a bright idea into a reality. With an overview of the engineering design process, readers are encouraged to apply the same steps into their own optical challenge.
Historically, farming was a very taxing, physical task. Bright-minded individuals revolutionized agriculture with inventions that eased tasks and sped up production. The advent of milestone machines such as Eli Whitney's cotton gin are chronologically explored in this stimulating title.
This exciting book describes the geological makeup and history of the Mojave Desert in the United States. Located in the states of California, Nevada, Utah, and Arizona, there are several national parks in the desert including Death Valley, the hottest place in North America. Readers will learn about the people, plants, and animals such as cougars, scorpions, and rattlesnakes that inhabit this desert habitat. The Mojave Desert is also a windy place where wind farms have been set up to generate electricity. Special sections describe the desert's natural resources, such as borax, silver, and gold, and the unique problems facing this region.
This Level 3 guided reader introduces basic facts about octopuses, including their physical characteristics, diet, and habitat. Simple callouts ask the student to think in new ways, supporting inquiry-based reading. Additional text features and search tools, including a glossary and an index, help students locate information and learn new words.
This Level 3 guided reader introduces basic facts about moray eels, including their physical characteristics, diet, and habitat. Simple callouts ask the student to think in new ways, supporting inquiry-based reading. Additional text features and search tools, including a glossary and an index, help students locate information and learn new words.
This Level 3 guided reader introduces basic facts about penguins, including their physical characteristics, diet, and habitat. Simple callouts ask the student to think in new ways, supporting inquiry-based reading. Additional text features and search tools, including a glossary and an index, help students locate information and learn new words.
This Level 3 guided reader introduces basic facts about rays, including their physical characteristics, diet, and habitat. Simple callouts ask the student to think in new ways, supporting inquiry-based reading. Additional text features and search tools, including a glossary and an index, help students locate information and learn new words.
This Level 3 guided reader introduces basic facts about jellyfish, including their physical characteristics, diet, and habitat. Simple callouts ask the student to think in new ways, supporting inquiry-based reading. Additional text features and search tools, including a glossary and an index, help students locate information and learn new words.
Bugs and insects have always fascinated children. This book in the Creepy Crawly Critters series introduces young readers to ants. Readers can discover physical characteristics, habitat, diet, and more.
Introduces facts about anacondas, including physical features, habitat, life cycle, food, and threats to these rainforest creatures. Photos, captions, and keywords supplement the narrative of this informational text. Questions in the backmatter ask for text-dependent analysis.
Introduces facts about chimpanzees, including physical features, habitat, life cycle, food, and threats to these rainforest creatures. Photos, captions, and keywords supplement the narrative of this informational text. Questions in the backmatter ask for text-dependent analysis.
This Level 3 guided reader introduces basic facts about beluga whales, including their physical characteristics, diet, and habitat. Simple callouts ask the student to think in new ways, supporting inquiry-based reading. Additional text features and search tools, including a glossary and an index, help students locate information and learn new words.
The mountain gorillas of Central Africa are a critically endangered species because of poaching, hunting, habitat loss, exposure to human diseases, and war. Readers will find out more about how people are working together to save these animals through habitat conservation and education.
At one time, the howling of gray wolves was a common sound throughout North America. Readers will learn more about these pack animals and what brought them to the edge of extinction. They will also find out more about the steps that have been taken to reintroduce gray wolves to the territories where they once roamed freely.
With fascinating information and facts, alongside beautiful pictures, students will learn about the Karner Blue Butterfly, its status on the endangered species list, why it has become endangered, and how it is planning on staging a comeback on the road to recovery.
The graceful, little key deer lives in the Florida Keys. Readers will learn more about these deer, how they became endangered, and what conservation groups are doing to help them make a comeback.
Gray whales live in the Pacific Ocean and can grow to be 50 feet (15 meters) long. Readers will discover how whale hunters brought these huge mammals to near extinction and how people are working together to help these giants of the sea fight for survival.
The whooping crane is a unique bird found only in North America and known for its whooping call great height for a bird. Readers will learn about the whooping crane's fight for survival as hunters killed them for their beautiful feathers and humans drained their wetland habitats to build houses.
The American bison was hunted to near extinction in the 1800s as settlers moved west across what is now the United States. Readers will learn about this animal that is a symbol of the American West and find out what steps were taken to help increase the American bison population.
Readers are introduced the habitat and lifestyle of the American Alligator and learn how the American Alligator is making a comeback from near extinction. Find out how people in the southeastern United States are learning to live with these amazing creatures.
An elephant seal has a thick layer of blubber that keeps it from freezing in cold northern waters. This protective layer of blubber was prized by hunters who killed so many elephant seals that there were fewer than 100 left alive. Discover how government leaders and others took action to save these sea mammals from extinction.
The small golden lion tamarin is known for its brownish-red mane, long tail, and territorial nature. Readers will learn about these creatures and how destruction of their coastal forest habitat almost led to their extinction. Find out how zoos and conservationists have collaborated to save the golden lion tamarin.
Many people are afraid of bats, but like every other living thing they play in important role in nature. Readers will learn about cave dwelling gray bats, how they became endangered, and how government leaders and scientists have teamed up to save these furry, flying creatures.
Rock climbing can be the fun and exhilarating, and the best part is that it is an activity that also helps you stay healthy and fit. Students will learn more about how they can start climbing, the importance of good equipment, and the health benefits of rock climbing.
