Discusses the Lewis and Clark expedition, including how the explorers prepared, who helped them on their way, and how important the expedition was for westward expansion of the country.
Presents an introduction to electricity, discussing the principles of currents, conduction, circuits, and voltage, along with instructions for simple experiments that demonstrate these principles.
Presents an introduction to electricity, discussing the principles of currents, conduction, circuits, and voltage, along with instructions for simple experiments that demonstrate these principles.
Introduces deep-sea anglerfish; discusses their physical characteristics, eating habits, and breeding habits; and highlights other fearsome fish, including the viperfish, wolffish, and blobfish.
Introduces different species of sharks and describes where they live in the ocean, what they eat, how they care for their young, and how pollution and hunting have threatened the lives of sharks.
Recounts the history and effects of the bubonic plague, describes how the disease spread, and offers information about treatment and prevention in the modern world.
Rain forests, with their amazing biodiversity, are a true and lasting place of enchantment. Basic facts are paired with detailed and entertaining descriptions of plant and animal life, both supported
Presents an introduction to light, discussing the principles of refraction, lenses, color, ultraviolet and infrared light, and solar power, along with instructions for simple experiments that demonstr
Presents an introduction to light, discussing the principles of refraction, lenses, color, ultraviolet and infrared light, and solar power, along with instructions for simple experiments that demonstr
Readers will explore the vibrant and deeply intriguing habitat provided by coral reefs. They'll read about the unique creatures found no where else, and how these beings create their own ecosystem. Th
Readers will take a virtual hike through the different zones of a mountain, learning about the plants and animals that inhabit each one. Engaging text and full-color photographs of pikas, mountain lio
Who would want to live on the freezing polar tundra? Actually, plenty of animals and plants do. Full-color photographs present animals such as penguins, polar bears, and the arctic tern while the info
Discusses what health care is, how it is paid for, what health insurance is and why it is important, how lack of health insurance affects children, staying healthy, and programs that help poor people
Introduces anacondas, especially the green anaconda, the world's largest snake, discussing their physical characteristics, habitats, eating habits, and the predators that eat them.
Discusses the creation of the Transcontinental Railroad, including what companies built it, why Native Americans attacked the construction crews, and its importance to westward expansion.
Discusses money problems, cutting costs, dealing with embarrassment or teasing about financial difficulties, how children can help with money problems, and ways for families to have fun together for f
Gives historical context to the Louisiana Purchase, including why the United States wanted to simply buy New Orleans, why Napolean sold the territory, and why the purchase was so important to westward
A vampire bat must drink half its weight in blood every night. This is just one of the enthralling facts readers discover through accessible text. Fact sheets and vivid photographs detailing the anima
Deserts can sometimes appear devoid of life. In reality, life abounds in this harsh environment. Students will take a closer look at animals, such as hawks, snakes, and tortoises that have unique adap
Some of the most amazing animals live in caves. Students will discover who is lurking in the dark recesses of a cave, from troglobites and troglophyles to those who are just passing visitors looking f
