In Paper Airplanes, early fluent readers explore the physics behind this popular make-it-yourself toy. Vibrant, full-color photos and carefully leveled text engage young readers as they explore how a paper airplane works. An infographic explores the aerodynamic differences between different folds, and an activity offers kids an opportunity to extend discovery. Children can learn more about paper airplanes using our safe search engine that provides relevant, age-appropriate websites. Paper Airplanes also features reading tips for teachers and parents, a table of contents, a glossary, and an index.
In Bicycles, early fluent readers explore the physics behind this popular children's vehicle. Vibrant, full-color photos and carefully leveled text engage young readers as they explore how a bicycle works. An infographic illustrates how a bicycle frame distributes a rider's weight, and an activity offers kids an opportunity to extend discovery. Children can learn more about paper airplanes using our safe search engine that provides relevant, age-appropriate websites. Paper Airplanes also features reading tips for teachers and parents, a table of contents, a glossary, and an index.
In Electric Animals, early fluent readers learn about animals such as the stargazer fish, electric eel, and torpedo ray that protect themselves against predators with electric shocks. Vibrant, full-color photos and carefully leveled text engage young readers as they explore the unique adaptations of these electric animals. An infographic compares the voltage of some electric animals with common appliances, and an activity offers kids an opportunity to extend discovery. Children can learn more about electric animals using our safe search engine that provides relevant, age-appropriate websites. Electric Animals also features reading tips for teachers and parents, a table of contents, a glossary, and an index.
In Horned Animals, early fluent readers learn about animals such as the yak, kudu, andcape buffalo that protect themselves against predators with strong and sharp horns. Vibrant, full-color photos and carefully leveled text engage young readers as they explore the unique adaptations of these horned animals. An infographic compares the horns of various animals, and an activity offers kids an opportunity to extend discovery. Children can learn more about horned animals using our safe search engine that provides relevant, age-appropriate websites. Horned Animals also features reading tips for teachers and parents, a table of contents, a glossary, and an index.
In Boomerangs, early fluent readers explore the physics behind this flying toy. Vibrant, full-color photos and carefully leveled text engage young readers as they explore how a straight throw can make a boomerang fly a curved path. An infographic explains a boomerang's flight path, and an activity offers kids an opportunity to extend discovery. Children can learn more about boomerangs using our safe search engine that provides relevant, age-appropriate websites. Boomerangs also features reading tips for teachers and parents, a table of contents, a glossary, and an index.
This colorful book describes the geological makeup and history of the Kalahari Desert in Africa. Covering most of Botswana, as well as portions of Namibia and South Africa, the Kalahari is not a true desert because it receives more than ten inches (250 mm) of rain each year. But the rain drains and evaporates quickly leaving no water on the surface of the red sand. Readers will learn about the variety of habitats in this vast desert system that support many different kinds of plants and animals such as springboks, giraffes, elephants, and zebras. Special sections also describe the Kalahari's natural resources, indigenous people, and the unique problems facing this region.
This intriguing book describes the geological makeup and history of the Gobi Desert in Mongolia and China. Temperatures can get very cold and frost and snow are not unusual. Readers will learn about the variety of habitats in this vast desert system that support many different kinds of plants and animals such as camels, snow leopards, and bears. The Gobi Desert is also where the first dinosaur egg fossils were found. Special sections describe the desert's natural resources, such as copper and gold, and the unique problems facing this region such as the desert's alarming rate of desertification.
Thailand's culture is a blending of the Buddhist religion and ancient traditions passed down through centuries. This interesting book describes how influences from surrounding countries such as India, China, Cambodia, and others in southeast Asia have helped to develop many of the colorful festivals celebrated today. Young readers will also learn how the Thai people celebrate family occasions.
What began as a day to celebrate the birthday of George Washington, the first president of the United States of America, has grown to include every other president to serve as leader of the country. Learn all about Presidents' Day, from its earliest beginnings to how Americans celebrate this occasion today. Children will love this easy-to-understand introduction of this important national holiday.
Learn how to write the perfect thank-you note.
Learn how to write a play that everyone will want to see.
Activities provide tips and instructions for using and crediting copyrighted material.
Learn how to write a well-structured, informative essay.
Learn how primary sources can help improve your research projects.
Learn how to collaborate with other people using the Internet.
Learn what it takes to become a member of the U.S. military's special operations forces.
Learn what it takes to become a pararescue jumper in the U.S. military.
A guide to what a climate scientist does and how to become one.
A guide to what an information security analyst does and how to become one.
A guide to what a remote systems control engineer does and how to become one.
A guide to what a transportation planner does and how to become one.
A guide to what a wind turbine services technician does and how to become one.
