Marie Curie's scientific research and discovery of radium in 1902, helped open the door to our modern nuclear age.

    It also includes hundreds of web site addresses for further research.

    -- Pictures and complementary text explain two fundamental principles of time-- Illustrated in full color

    With whimsically hip illustrations, every page is an extraordinary look at all kinds of subjects, from mineral formation and the inside of a volcano to what makes sunsets, monarch butterfly migration, the ecosystem of a rotting log, the parts of a bird, the anatomy of a jellyfish, and much, much more.

    Equally useful to a parent trying to guide a child through the baffling world of modern mathematics and to children learning for themselves, this book includes: percentages; ratios; managing money; data; probability; averages; and standard deviation.

    Twenty-four unusual tales from various periods in Chinese history, some complex, others as brief as a joke, display the wit, cleverness, and down-to-earth wisdom of the Chinese people.

    This colourful book explores the exciting worlds of mountains, jungles and deserts, their dramatic landscapes, the animals and plants that inhabit them and the people who live in the most beautiful and remote areas of the earth.

    Fantastic photographs, thousands or even millions of times larger than life, reveal the secrets of the micro universe, while step-by-step project ideas and Internet links to recommended websites will help you set off on a micro world tour of your own.

    There are lots of facts about the artists and their lives, and how they created their work, to help beginners understand what art is and why people think it is important. There are also Internet links to recommended websites where you can view lots more pictures, play art games and create your own art online."

    He was tall and strong, fair in judgment, and respected by his friends as agood leader. As he grew older, George saw how England took advantage of the American colonies—and he didn't like it. When the colonies declared their independence, George was chosen to lead their army as its general. And when the colonies won their freedom, George was elected to lead the new nation as its first president.

    Chock-full of information about the weather, animals, insects, and plants, including dozens of simple science experiments, this is a reference book that offers fun for the whole family.

    Encounters with tigers, wild hogs, and deadly snakes were as much a part of his life as tending the rice fields while on the back of his pet water buffalo, Tank.Perfect for classrooms, as well as fans of Linda Sue Park and Thanhha Lai, these fifteen tales will transport readers into a world of lush beauty and terrible danger—and a way of life that is gone forever.

    A brilliant overview of world history from prehistoric times to the early 20th century

    -- Introduces young children to fundamental aspects of nature, science and technology-- Inspired by the questions children ask about the world around them-- Simple text and detailed illustrations answer questions in clear, step-by-step stages

    Africa, China, Europe, the Americas—find out what happened all around the world in long-ago times. This first revised volume begins with the earliest nomads and ends with the last Roman emperor. Newly revised and updated, The Story of the World, Volume 1 includes maps, a new timeline, more illustrations, and additional parental aids. This read-aloud series is designed for parents to share with elementary-school children. Enjoy it together and introduce your child to the marvelous story of the world's civilizations.Each Story of the World volume provides a full year of history study when combined with the Activity Book, Audiobook, and Tests—each available separately to accompany each volume of The Story of the World Text Book. Volume 1 Grade Recommendation: Grades 1-5.