Elementary School

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Resources eBooks Collections
Science eBook Collection Dorling Kindersley Collection

Science eBook Collection

  • A Slice of Organic Life

    A Slice of Organic Life

    Features over 90 self-contained projects, from growing your own foodorganically, cooking home-grown produce, keeping selected livestock,and leading a more sustainable lifestyle.

  • Amphibian

    Amphibian

    Provides detailed information on the different habitats, life cycles, and natural history of frogs, toads, newts, salamanders, and the rare caecilians.

  • Amphibian, Rev. ed.

    Amphibian, Rev. ed.

    Examines the natural history of these creatures from frogs, toads, newts, and salamanders to the rare caecilians.

  • Animal Life

    Animal Life

    Examines animals such as sea animals, spiders, and mammals featuring their behavior, homes, and care of offspring and eggs.

  • Animals

    Animals

    Introduces toddlers to different kinds of animals.

  • Animals Around the World

    Animals Around the World

    Presents information about a wide variety of animals, from speedy cheetahs to enormous elephants.

  • Animals Up Close: Zoom In on the Most Incredible Creatures

    Animals Up Close: Zoom In on the Most Incredible Creatures

    Features close-up images of animals from insects to reptiles to mammals to birds, revealing the colors, textures, and structures of each animal.

  • Arctic & Antarctic

    Arctic & Antarctic

    Provides a unique view of our planet's polar wildernesses. Covers the northern and southern lights, the crushing power of ice, why Amundsen beat Scott to the South Pole, how penguins keep warm, and what reindeer eat.

  • Arctic and Antarctic

    Arctic and Antarctic

    Provides an introduction to the polar regions and the plants and animals that survive in such hostile conditions.

  • Arctic and Antarctic

    Arctic and Antarctic

    Covers all aspects of life in the Arctic and Antarctic. Examines how people live and work in this environment, and introduces animals such as polar bears, penguins, and sea lions.

  • Astronomy

    Astronomy

    Features the discoveries and research that have transformed our understanding of the planets and stars of the universe.

  • Astronomy

    Astronomy

    Provides an introduction to astronomy and a glimpse into its history, from the origins of the universe to space exploration.

  • Baby Animals

    Baby Animals

    Introduces toddlers to different kinds of baby animals.

  • Bird

    Bird

    Provides detailed information on birds' habitats, diet, and sizes, as well as other interesting facts about birds.

  • Bird, Rev. ed.

    Bird, Rev. ed.

    Covers the world of birds, examining such topics as body construction, feathers and flight, the adaptation of beaks and feet, feeding habits, courtship, nests and eggs, and bird watching.

  • Boat

    Boat

    Provides a guide to the origins, principles, and historical study of boats.

  • Building

    Building

    Covers the components and construction materials of a building, and discusses staircases, fireplaces, doors, windows, and ornament.

  • Bunny

    Bunny

    Follows the growth and development of a bunny from birth to six weeks old.

  • Butterfly

    Butterfly

    Provides detailed information on the life cycle of a butterfly.

  • Butterfly

    Butterfly

    Follows the growth and development of the butterfly from a caterpillar into a butterfly.

  • Butterfly & Moth

    Butterfly & Moth

    Explores the behavior and life cycles of butterflies and moths, examining mating rituals, camouflage, habitat, and growth from pupa to larva to adult.

  • CDs, Super Glue, and Salsa: How Everyday Products are Made, Series 3

    CDs, Super Glue, and Salsa: How Everyday Products are Made, Series 3

    Provides descriptions of household and high-interest products, step-by-step descriptions of manufacturing processes, and sidebars with additional information. Covers for each entry: why there was a need, who invented it, how it is made, what it is made of, and how it works. Includes photographs, illustrations and line drawings, and a glossary of definitions.

  • Car

    Car

    Covers the history, development, and impact of automobiles from horseless carriages and Model T Fords to modern high-performance racing cars.

  • Castle

    Castle

    Describes the castles of the Middle Ages and the lives of the people who lived in them.

  • Cat, Rev. ed.

    Cat, Rev. ed.

    Covers the anatomy, behavior, habitats, and other aspects of wild and domestic cats.

  • Chick

    Chick

    Shows the development of a chick from hatching to eight weeks old.

  • Childrens Illustrated Encyclopedia

    Childrens Illustrated Encyclopedia

    Covers entries ranging from Abolitionist Movement to Zoos.

  • Civil War

    Civil War

    Provides information on the American Civil War including the issues that divided the country, the battles that shaped the conflict, and the birth of the reunited states.

  • Compost

    Compost

    Covers how to make the best compost using ingredients that are easily found around the house.

  • Cool Stuff 2.0 and How It Works

    Cool Stuff 2.0 and How It Works

    Uses computer-generated images to explain how many devices and processes of modern technology work. Covers inventions such as HDTV, game consoles, robot cars, helicopters, space probes, oil rigs, mass dampers, biometric id's, and tsunami alert systems.

  • Crystal & Gem

    Crystal & Gem

    Provides information about the formation and practical uses of crystals, semiprecious stones, and precious metals.

  • Crystal and Gem, Rev. ed.

    Crystal and Gem, Rev. ed.

    Examines crystals and gems in various shapes, sizes and colors. Also explores how crystals are used in everything from industrial tools and electronics to items in the household.

  • DK Guide to Dinosaurs

    DK Guide to Dinosaurs

    Depicts how dinosaurs lived and died, covering such topics as habitats, size, hunting techniques, self-defense, courtship, and family life.

  • DK Guide to Mammals

    DK Guide to Mammals

    Explores the world of mammals--their habitats, behavior, anatomy, intelligence, and more.

  • DK Guide to Savage Earth

    DK Guide to Savage Earth

    Depicts the powerful natural forces that shape the Earth including glaciers, volcanos, earthquakes and tsunamis.

  • DK Guide to Weather

    DK Guide to Weather

    Explores a wide range of weather topics, including climate and seasons, wind and gales, lightning and thunderstorms, hurricanes and tornadoes, solar wonders, and weather forecasting.

  • DK Guide to the Human Body

    DK Guide to the Human Body

    Provides a guide to the skeleton, organs and senses. Explains the processes of the human body in detail.

  • Dangerous Dinosaurs Q&A

    Dangerous Dinosaurs Q&A

    Examines facts about dinosaurs including why some plant-eating dinosaurs grew so large, how dinosaurs used teeth, claws, spikes, and tail clubs in their fight for survival, and why the dinosaurs died out and what happened afterwards.

  • Desert

    Desert

    Provides an introduction to the harsh world of hot and cold deserts and the people, plants, and animals that live in them.

  • Desert

    Desert

    Examines the forces that form deserts and discusses the animals and people that inhabit them.

  • Dinosaur

    Dinosaur

    Provides detailed information on the world of dinosaurs. Describes their sizes, how they looked, how they lived, and how they behaved.

  • Dinosaur

    Dinosaur

    Covers the world of the dinosaur, focusing on their teeth, feet, eggs, and fossils.

  • Dinosaur

    Dinosaur

    Provides online links with fossil hunters, scientists, and the people who bring dinosaurs to life.

  • Dinosaur Atlas

    Dinosaur Atlas

    Find out what the world was like millions of years ago by exploring the prehistoric continents to see how and where dinosaurs and other prehistoric animals lived.

  • Dog, Rev. ed.

    Dog, Rev. ed.

    Covers the evolutionary history of the entire dog family, their domestication, anatomy, behavior, and breeds, highlighting the many ways in which they have helped people throughout history.

  • Duck

    Duck

    Shows the development of a duckling from hatching to eight weeks old.

  • Eagle & Birds of Prey

    Eagle & Birds of Prey

    Describes the anatomy, hunting techniques, mating, nesting, and eating habits of birds of prey, as well as their techniques for stalking, catching and killing their quarry.

  • Early Humans

    Early Humans

    Provides detailed information on the world of ancient people and their ways of life.

  • Early Humans

    Early Humans

    Covers how the world's first people lived from cave dwellings to the tools of the Iron Age.

  • Earth

    Earth

    Provides fun facts about the planet Earth. Examines the earth's position in the solar system and how its surface is constantly being re-shaped by the elements.

  • Earthquakes and Other Natural Disasters

    Earthquakes and Other Natural Disasters

    Describes natural disasters which have occurred in various places throughout the world.

  • Ecology, Rev. ed.

    Ecology, Rev. ed.

    Provides information about ecology in general, specific ecosystems, and our changing understanding of life around us.

  • Encyclopedia of Space

    Encyclopedia of Space

    Provides a guide to astronomy and space science and includes the facts and figures from the latest missions to the planets, and images from the Hubble Space Telescope.

  • Endangered Species, ed. 2

    Endangered Species, ed. 2

    Including the addition of 25 new species, this new 2nd edition is completely updated to reflect the changes in endangered and threatened status. Color photographs and maps provide further illustrate the many species threatened by extinction, including amphibians, birds, crustaceans, fish, insects, mammals, mollusks, reptiles, and more. Each entry gives a species description, location, reason for endangerment, and measures being take

  • Energy

    Energy

    Explains how energy sources like electricity, heat, power, sun, lightening, fire, and combustion, shape our landscape and climate.

  • Epidemic

    Epidemic

    Discusses what an epidemic is, how it evolves, various causes and carriers, and efforts to prevent epidemics.

  • Eruption!: The Story of Volcanoes

    Eruption!: The Story of Volcanoes

    Describes volcano eruptions that have occurred in various places throughout the world.

  • Everest

    Everest

    Provides information on Everest and mountains around the world. Includes sections on mountain climbing gear, the Winter Olympics, and alpine conservation.

  • Evolution, Rev. ed.

    Evolution, Rev. ed.

    Covers animals, plants, bones, and fossils to reveal the ideas and discoveries that have changed our understanding of the natural world and how life began.

  • Explorer

    Explorer

    Provides detailed information on the world of exploration, from early expeditions to high-tech trips into space.

  • Explorer

    Explorer

    Charts the journeys of intrepid travelers, from Marco Polo to Neil Armstrong, looking at the challenges they faced and the discoveries they made.

  • Explorer, Rev. ed.

    Explorer, Rev. ed.

    Covers many types of exploration including early expeditions across the globe, space exploration, and deep sea exploration.

  • Farm

    Farm

    Covers the different aspects of farming through the ages including the equipment, domestic animals, crops, and the future of farming.

  • Farm

    Farm

    Introduces toddlers to different things one can find on a farm.

  • First Garden Activity Book

    First Garden Activity Book

    Teaches young gardeners how to growing plants and includes projects to enjoy with easy-to-follow ideas.

  • Fish

    Fish

    Provides detailed information on the world of fish, including how they evolved, how they live, and their habitats.

  • Flag

    Flag

    Covers flags from countries all over the world, including special flags such as signal flags for ships and boats, flags for special festivals and sports, political flags and coats of arms.

  • Flying Machine

    Flying Machine

    Provides an introduction to the history of flight and explores the various aircraft in use today.

  • Food

    Food

    Covers many topics involving food including healthy eating, food and culture, food allergies, and cooking, among others.

  • Forest

    Forest

    Introduces characteristics of different kinds of forests found around the world, the plants and animals that populate them, and how they are endangered.

  • Fossil

    Fossil

    Provides information on what fossils are, how they were formed, and how they lived millions of years ago.

  • Fox

    Fox

    Shows the development of a red fox from birth to twelve weeks old.

  • Frog

    Frog

    Shows the development of a frog from the egg stage through its first year.

  • Future

    Future

    Illustrates the visions of the future of scientists, artists and inventors through the ages. Presents a view of a world we are yet to know, in the twenty-first century and beyond.

  • Garden Design

    Garden Design

    Shows step-by-step techniques for tackling every aspect of garden design from planning and planting to simple construction projects.

  • Geography of the World, Rev. and Updated ed.

    Geography of the World, Rev. and Updated ed.

    Examines geography all over the world.

  • Gorilla, Monkey & Ape

    Gorilla, Monkey & Ape

    Covers details about the behavior, family life, and intelligence of gorillas and other primates.

  • Grow It, Cook It: Simple gardening projects and delicious recipes

    Grow It, Cook It: Simple gardening projects and delicious recipes

    Offers a fresh approach to healthy eating by getting children involved in food right from the start. Children will learn that when they eat a carrot, they're biting into a root; salads are made up of leaves; and berries are the fruit and seeds of plants, encouraging an early appreciation of food and its origins.

  • Grow Organic

    Grow Organic

    A practical guide to organic gardening that explains and illustrates all the key principles and techniques needed to grow a garden the natural way.

  • Horse

    Horse

    Provides detailed information on the world of horses and ponies. Describes their natural history, their role in civilization, and many other interesting facts.

  • Horse

    Horse

    Features all kinds of facts about horses, including why horses flatten back their ears, how a blacksmith shoes a horse, how horses have been used in wartime, and more.

  • Horse

    Horse

    Covers the different types, physical characteristics, behavior, senses, and uses of horses.

  • Human Body

    Human Body

    Covers the human body, including its inner workings, how it protects and repairs itself, the skeleton, senses and systems that enable us to live and function.

  • Human Body

    Human Body

    Provides detailed information on the human body's structure, function, and disorders.

  • Hurricane

    Hurricane

    Provides an introduction to hurricanes, including details of their destructive forces and their historical background.

  • Hurricane & Tornado, Rev. ed.

    Hurricane & Tornado, Rev. ed.

    Explores various types of extreme weather including tornadoes, hurricanes, snowstorms, and hailstorms, among others.

  • Insect

    Insect

    Provides detailed information on the world of insects. Describes the variety and complexity of insects, their structure, life cycles and behavior.

  • Insect, Rev. ed.

    Insect, Rev. ed.

    Features the busy world of insects. Discover their structure, history, and fascinating variety.

  • Invention

    Invention

    Provides an introduction to a variety of inventions, both ancient and modern, that have changed the world.

  • Invention, Rev. ed.

    Invention, Rev. ed.

    Explores such inventions as the wheel, gears, levers, clocks, telephones, and rocket engines.

  • Judaism

    Judaism

    Discusses the historical origins, teachings, practices, persecution, spread, and challenges of Judaism and explores the history, faith, and traditions of Jews.

  • Jungle

    Jungle

    Provides an introduction to the plants, animals and insects of the world's jungles.

  • Jungle, Rev. ed.

    Jungle, Rev. ed.

    Examines the plants, animals, and insects found in the world's tropical rain forests.

  • Kitten

    Kitten

    Shows the development of a kitten from birth to ten weeks old.

  • Knight

    Knight

    Provides information on the world and lives of knights.

  • Knight, Rev. ed.

    Knight, Rev. ed.

    Explores what life was like for knights in medieval times. Covers topics such as battles, hunting, weaponry, armor, jousting, and castles.

  • Lamb, Rev

    Lamb, Rev

    Depicts the growth and development of a lamb from its first hours of life to twelve weeks old.

  • Light

    Light

    Provides a guide to the origins, principles, and historical study of light.

  • Mammal

    Mammal

    Discover why a wallaby has a pouch. Find out how to recognize animal footprints. See how newborn mice develop. Be an eyewitness to the lives of your remarkable relatives, the mammals--from hedgehogs and bats to elephants and bushbabies.

  • Mammal, Rev. ed.

    Mammal, Rev. ed.

    Examines the world of mammals, depicting their development, feeding habits, courtship rituals, protective behavior, and physical adaptation to their various ways of life.

  • Mars

    Mars

    Covers many topics including Mars of the ancients, Mariner 9, the Martian atmosphere, life on mars, and future exploration, among others.

  • Moon

    Moon

    Covers the Moon's physical characteristics, relationship to the Earth, and the history of human reactions to and exploration of it.

  • Mouse

    Mouse

    Shows the development of a mouse from birth to eight weeks old.

  • Music, Rev. ed.

    Music, Rev. ed.

    Covers the history of music, how instruments are made, and how they have evolved today.

  • Mythology

    Mythology

    Provides an introduction to the world of mythology. Discusses the stories told by different cultures to explain the mysteries of the world.

  • Natural Disasters

    Natural Disasters

    Covers the power of hurricanes, tsunamis, and other natural disasters.

  • North American Indian

    North American Indian

    Provides information on the civilizations of North American Indians.

  • Notable African American Writers

    Notable African American Writers

    Compiles essays on great novelists, poets, playwrights, short-story writers, and writers of nonfiction from colonial America to today. Includes overviews of each author's biography and literary career as well as ready-reference listings of their major works in all genres.

  • Notable Latino Writers

    Notable Latino Writers

    Compiles essays on great novelists, poets, playwrights, and short-story writers of the Western Hemisphere who are considered 'Latino' in the broad sense of the term. Includes works originally written in English and those Spanish and Portuguese works that have been translated into English. Includes overviews of the author's biography and literary career as well as ready-reference listings of their major works in all genres.

  • Ocean

    Ocean

    Covers the world's oceans, from the geological and physical processes that affect the ocean floor, to the key habitat zones.

  • Ocean

    Ocean

    Provides an introduction to the natural history, geology, and exploration of the world's vast oceans.

  • Ocean

    Ocean

    Explores the lives and habitats of sea creatures on the ocean floor from dolphins and sharks to jellyfish.

  • Oil

    Oil

    Provides information about oil and other petroleum products by explaining what they are and how they are used. Also discusses oil exploration, drilling, refining, and looks at the problem of pollution and alternatives to oil as a fuel source.

  • Olympic Games

    Olympic Games

    Presents the history of the Olympic games from ancient Greece to the present.

  • One Million Things: A Visual Encyclopedia

    One Million Things: A Visual Encyclopedia

    Featuring photographs that illustrate and educate, this visual encyclopedia is packed with images that bring more than one million things to light.

  • Our Living World: Earths Biomes

    Our Living World: Earths Biomes

    Multi-volume set takes an in-depth look at various ecosystems. Original, detailed maps and vibrant pictures inform readers about various biomes, the myriad plants and animals that live within each, and the role that humans must play to protect earth's fragile environment. Interesting facts, recommended learning materials, and glossary words are interspersed throughout the volumes. Aimed at grades 4-8.

  • Owl

    Owl

    Shows the development of a barn owl from hatching to twelve weeks old.

  • Penguin

    Penguin

    Follows the growth and development of a young penguin through its first year.

  • Pig

    Pig

    Charts the early stages of a young pig's life.

  • Pirate

    Pirate

    Provides information on the world and lives of pirates.

  • Piratepedia

    Piratepedia

    Covers the pirate world of the past, featuring high-sea rogues, their vessels, hideouts, cunning adventures, and gnarly ends by combining facts and classic fiction.

  • Plant

    Plant

    Describes the appearance, life-cycle, pollination, food, and development of a variety of plants including trees and meat-eaters as well as discussing climatory factors in plant growth.

  • Plant

    Plant

    Provides an introduction to the world of plants, including the natural history of plant anatomy and growth.

  • Pond & River

    Pond & River

    Provides an introduction to the plant and animal life that thrives in freshwater habitats.

  • Pony

    Pony

    Charts the early stages of a young pony's life.

  • Puppy

    Puppy

    Depicts the growth and development of a puppy from its first day alive to its eighth week.

  • Rain Forest

    Rain Forest

    Explores the world of the rainforest and the many jungle creatures that live there.

  • Religion, Rev. ed.

    Religion, Rev. ed.

    Explores the histories, beliefs, and practices of religions all over the world.

  • Reptile

    Reptile

    Provides detailed information on the world of reptiles, including their natural history, habits, and lifestyles.

  • Rivers and Lakes

    Rivers and Lakes

    Describes how rivers flow to the sea and the characteristics of rivers and lakes, including the animal life found within and near them.

  • Robot

    Robot

    Covers robots from the earliest single-task machines to the advanced intelligence of robots with feelings, and learn all that robots can do.

  • Rock & Mineral

    Rock & Mineral

    Examines the beauty and importance of minerals, metals, crystals, fossils, and gemstones and provides insight into the evolution and composition of the Earth.

  • Rock & Mineral

    Rock & Mineral

    Examines the creation, importance, erosion, mining, and uses of rocks and minerals.

  • Seashore

    Seashore

    Provides an introduction to the seashore and the creatures that live there.

  • Shark

    Shark

    Provides detailed information on the world of sharks. Describes the natural history, behavior, and habits of sharks and their relatives.

  • Shipwreck

    Shipwreck

    Provides an introduction to the world's most significant shipwrecks and their lost cargoes and treasures.

  • Skeleton

    Skeleton

    Provides detailed information on human and animal skeletons, including their evolution, structure, and function.

  • Space

    Space

    Explores outer space and investigates the wonders of the universe from Saturn's rings to life in space stations.

  • Space Exploration

    Space Exploration

    Provides information on the history of space exploration and the daily life of astronauts.

  • Space Exploration Reference Library

    Space Exploration Reference Library

    From Chinese rockets of the 11th century to the latest developments in modern space travel, the four-volume Space Exploration Reference Library provides a wealth of information on this still-emerging science.

  • State-by-State Atlas

    State-by-State Atlas

    Provides young geographers with answers to who, what, when, where, and why questions about United States geography.

  • The Book of Weeds

    The Book of Weeds

    Offers information and advice on handling weeds and shows how to recognize them, how to control them, and how to exploit them.

  • The Cooks Herb Garden

    The Cooks Herb Garden

    Provides recipes, step-by-step photographs on how to plant, nurture, harvest, and store herbs, and flavor charts that list the best herbs to partner with popular ingredients.

  • The Human Brain Book

    The Human Brain Book

    Covers the one organ in the body that makes each person a unique individual and includes the latest findings from the field of neuroscience.

  • The New Self-Sufficient Gardener

    The New Self-Sufficient Gardener

    A complete illustrated guide to planning, growing, storing and preserving your own garden produce.

  • Things that Go

    Things that Go

    Introduces toddlers to different kinds of vehicles.

  • Titanic

    Titanic

    Provides an introduction to the Titanic, from its maiden voyage to its wreck on the ocean floor.

  • Tomato

    Tomato

    Showcases the different varieties of tomatoes and shows how to grow them-in pots, hanging baskets, grow bags, under glass, and outdoors-and harvest tomatoes, as well as cooking and preserving them.

  • Tree

    Tree

    Provides an introduction to the world of trees, from tiny saplings to forest giants.

  • Tree, Rev. ed.

    Tree, Rev. ed.

    Covers many kinds of trees from coniferous to tropical. Includes topics such as the lifecycle of a tree, the many parts of a tree, and identifying trees.

  • Twisters!

    Twisters!

    Describes how tornadoes form and what effects they have on people and their surroundings.

  • UXL Encyclopedia of Landforms and Other Geologic Features

    UXL Encyclopedia of Landforms and Other Geologic Features

    Focuses on the physical and geological aspects, structure, and features of 48 of the earth's landforms - what they are, how they look, how they were created, how they change over time, and major geological events associated with them. Written for middle school students to support earth science and landform-related assignments, alphabetically arranged entries follow a standard and consistent subheaded format; and range in length from

  • UXL Encyclopedia of Water Science

    UXL Encyclopedia of Water Science

    This encyclopedia explores water science and issues from an international perspective. Topics covered include lakes and streams, oceans, aquatic animals, weather and climate, glaciers, wetlands, ecology, hydropower, commercial fishing, acid rain, recreation, pollution, economics, water conservation, international water law, global warming and much more.

  • Viking

    Viking

    Provides information on the world and lives of Vikings.

  • Volcano

    Volcano

    Provides information on the inner workings of volcanoes and famous volcanic eruptions.

  • Volcano

    Volcano

    Explores the danger and wonder of volcanoes from fiery mountains under the sea to spectacular explosions.

  • Voyage: Ocean...A Full-Speed-Ahead Tour of the Oceans

    Voyage: Ocean...A Full-Speed-Ahead Tour of the Oceans

    Covers all there is to know about the oceans.

  • Water

    Water

    Explains how rain, rivers, currents, and oceans shape our landscape and climate, support unique marine habitats, and threaten our coasts and cities with rising sea levels.

  • Weapon: A Visual History of Arms and Armor

    Weapon: A Visual History of Arms and Armor

    Covers weapons, and the warriors who used them, from the stone axes of the earliest warfare to the heavy artillery of today's modern armies.

  • Weather

    Weather

    Provides an introduction to the power and beauty of the weather.

  • Weather

    Weather

    Explores many aspects of weather and how it affects people's lives.

  • Weather

    Weather

    Provides an introduction to the power and beauty of the weather.

  • Weather

    Weather

    Explores many aspects of weather and how it affects people's lives.

  • Weather, Rev. ed.

    Weather, Rev. ed.

    A guide to the forces and displays of nature. Covers topics such as weather prediction, thunder and lightning, rainbows, snow and extreme weather.

  • Whale

    Whale

    Provides detailed information on the world of whales. Describes how they live, how they behave, how they look, and many other interesting facts.

  • Whales & Dolphins

    Whales & Dolphins

    A brief introduction to the physical characteristics and behavior of various marine mammals, particularly whales and dolphins.

  • Why Pi?

    Why Pi?

    Focusing on how people from ancient Egyptians to modern scientists have used numbers to measure things through the ages. Includes games, puzzles, brainteasers, and fun facts.

  • World Religions

    World Religions

    Explores the main principles and thinking of each religion to reveal the symbolism and meaning in religious imagery and iconography in great detail.

  • World War I

    World War I

    Provides an introduction to World War I including the events that led to its outbreak, the leaders, the people who fought, and the battles that shaped the conflict.

  • World War II

    World War II

    Provides an introduction to World War II including the events that led to its outbreak, the leaders, the people who fought, and the battles that shaped the conflict.