What on Earth? This reading comprehension work revolves around facts and myths about our own planet. Extend your child's reading skills and help ideas take root with this down-to-earth workbook.

Water is the source of life—and of fascinating science! Full of exciting experiments, this workbook brings to life important concepts like water density, the water cycle, and the chemistry of water.

Dive into earth and life science with this book on aquatic biomes. Research reefs, learn wetland animals, and explore the squishy world of swamps in this book about these wet and wild ecosystems.

The activities in this workbook do double-duty as both vocabulary practice and earth science review with a collection of word scrambles, crosswords, and quizzes about animals, plants and planets.

With this set kids can observe clouds to constellations, flowers to photosynthesis. Build a love of the great outdoors and spend time outside as you learn basic concepts of earth science.

This workbook gives first graders lots of practice with subtraction and shows its relationship to addition.

Learn the lay of the land with a comprehensive breakdown of Earth's landforms. From buttes to fjords, kids will learn all the terminology and science behind the amazing structures of our planet.

Why does the earth spin? How is a rainbow formed? Feed the flame of curiosity in your child, and find out the answers to some of those age-old questions about how the world works.

This workbook gives first graders lots of practice with addition and the various concepts within the addition family.

Earth's neighbors have landed: the planets that is! Your child can make his way across our solar system, planet by planet, learning interesting facts like any good astronaut, and making a 3-D mobile.

This workbook helps kids transition from âlearning to readâ to âreading to learnâ by offering spotlights on different cities. It covers history, important landmarks, and fun facts.

Let your voice be heard! This workbook challenges kids to express their opinions. But more importantly, they'll learn how to support opinions with good evidence and facts.

Explore nonfiction with this set of short and sweet facts on notable people, places and events in history. Young readers can practice taking notes, answering questions and analyzing primary sources.

From purple mountains majesty to the shining seas, learn to recognize the U.S. symbols with this comprehensive book. With coloring, fun activities and facts, kids can embrace their American heritage.

Electrons and currents, this is electrifying science learning! From Tesla to Frankenstein here's a fun spin on electricity and magnetism coiled into one readable book of facts and ideas to try.

Here's an arsenal of April Fools' Day fodder! Kids will be armed with facts, pranks and puzzles. Plus, they'll be tickled by goofy writing prompts, silly word problems and wacky reading comprehension.

Get your hands dirty in the name of science! Explore the basic elements of the earth's surface with this beginner's guide to rocks, soil, and processes that change them.

This workbook explores the myths, science, and history of our efforts to understand the skies with light reading. Introduce kids to gravity, moon phases and stars with basic activities and stories.

Pay homage to our majestic, leafy companions with this series about trees. Kids can learn about the structure of trees, identify different leaf types and reflect on the many gifts that trees give.

Children learn about a variety of aspects of Native American life and culture in this social studies workbook.