They say this mysterious monster of the deep chases ships and battles whales. They say it can weigh up to 1,000 pounds and that its eyes can be as big as a human head! Are these stories fact or fantasy? Find out in this exciting beginning reader.

    This book discusses the growing problem of pollution on Earth that led to the establishment of Earth Day in 1970. It explains how Earth Day is now celebrated every year with community clean-ups, speeches, marches, and classes about caring for the environment. the book also explains why it is so important to keep our planet clean and what kids can do to help--including recycling, using recycled products, picking up litter, planting trees, being careful not to waste water, riding bicycles, and carpooling. The True Book holidays subset introduces readers to the origins, purpose, and ways of celebrating a variety of national, ethnic, civic, religious, and historical holidays.

    Each book features critical-thinking questions throughout the text; a simple, hands-on experiment; a glossary and more. From the honk of a car horn to the bark of a dog, sounds are everywhere. Even though they are not all the same, science tells us how they all work! In Sound readers will find out how sounds are created, how they travel, and how they are heard.