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Describes killer whales, their habits, where they live, their hunting methods, and how they exist in the world of people.
Provides examples to show how wedges are simple machines that make pushing, pulling apart, and lifting easier.
Describes the physical characteristics, habits, habitats, and hunting methods of the giant lizard known as the komodo dragon.
This series discusses the highlights and issues of each president's time in office. The straightforward narrative provides key facts from early childhood to retirement, while emphasizing international and historical perspectives. -- Supports social studies and history curriculum -- Detailed, full-page timeline and colorful maps and diagrams -- Lively fun facts provide memorable anecdotes about each president
This book discusses whale sharks, large sharks that are equal to the size of whales.
Describes anacondas, their habits, where they live, their hunting methods, and how they exist in the world of people.
Uses everyday examples to describe inclined planes as simple machines that make lifting, pushing, moving, and building easier.
Sharks have been swimming in the oceans of the world for over 300 million years. Dinosaurs vanished from the earth, but sharks survived, with very little change. This fascinating series profiles five of the most interesting shark families, explaining their life cycles, behavior, and habitat. Easy-to-read text presents scientific information clearly and accurately, while the breathtaking full-color photography captures these mysterious demons of the deep in their shadowy underwater world. Each book contains an index, bibliography, glossary.
Uses everyday examples to describe levers as simple machines used to lift, push, or move a load.
Describes the ecosystems of the rain forests of Hawaii, how human activities have affected these forests, and what is being done to protect them.