Barbara A Somervill

Calendars have helped mankind to mark the passage of time for thousands of years. This title illustrates the development of the calendar and highlights the civilizations and innovations that are associated with various methods of tracking days, months, and years. Young readers will also get a glimpse of what the future holds in store as inventors and modern-thinkers come up with better ways of keeping time. Have you ever wondered what life was like...

An overview of the country of Spain: its people, culture, government, history, and natural environments.

Together, Australia and the many small islands of Oceania make up Earths smallest continent. Yet though the continent is small, it is packed with plenty to see. Readers will hop from island to island as they examine the incredible wildlife and landscapes of Australia and Oceania. Along the way, they will also explore the continents history with rich text and stunning visuals, and meet the people who call it home. Features include engaging sidebars...

Our Living World takes young readers on a fascinating tour of Earth's major ecosystems. Kids will learn about the key plants and animals that make each ecosystem unique. They'll also get a glimpse of humanity's effects, both positive and negative, on the habitats of countless creatures. Informative sidebars, suggested activities, and supplemental reference materials throughout the text contribute to a well-rounded portrait of our world's natural wonders....

This book uses math and science to help students learn about glaciers. Math challenge questions provide students with the opportunity to apply math skills as they learn about the characteristics of glaciers.

From Alexander Graham Bell's earliest model to modern-day cell phones, telephones are one of our most important modes of communication. Learn about the initial attempts to transmit the human voice over wire, and discover how far telephones have progressed within the past few centuries. Have you ever wondered what life was like before telephones or cars? It's easy to take for granted the inventions that have had such huge impacts on our everyday lives....

Find out what it takes to make it in the competitive world of professional acting.