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This inspiring biographical series ties in with elementary history, science, and social studies curricula, providing teachers with a valuable interdisciplinary resource. With these books, young readers will discover historical figures who devoted their lives to making the world a better place, and changed the course of history. Text copyright 2004 Lectorum Publications, Inc.

Defines pulleys, explains their functions, and suggests simple experiments to demonstrate how they work.

Solar Energy Is Explained. Included In This Book Is Where It Comes From, Who Uses It, And The Positive And Negative Benefits Of Using It. Correlated To Common Core, Texas TEKS, Virginia Sols, And Georgia Performance Standards.

The Uses Of Wind Energy Is The Topic Of This Book. Explains The Positive And Negative Impact This Form Of Energy Can Have On Our World.

Libros profusamente ilustrados, con bellas y expresivas imágenes a todo color y textos directos, claros y concisos que ayudan a los primeros lectores a comprender, amar y cuidar el mundo en que vivimos y que compartimos con nuestros semejantes. Este volumen pone al alcance de los más jóvenes los fenómenos climáticos, es decir, la combinación de diversas temperaturas, lluvia y sol que se van manifestando con relativa estabilidad una estación tras otra. Los científicos están muy preocupados por el calentamiento progresivo de la Tierra, porque tendrá consecuencias muy importantes para...

Introduce readers to the various ways they can participate in volunteerism with this Spanish-translated nonfiction title. Readers will discover many different charities and programs, including The Salvation Army, Feeding America, Habitat for Humanity, and Doctors Without Borders through vivid images, charts, and informational text. This nonfiction title aids in encouraging children to make a difference in their own communities by writing to newspapers or politicians or by participating in fund-raising and various programs or charities. This 6-Pack includes six copies of this title and a...

Simple text and photographs describe dragonflies, including their physical characteristics, behavior, and life cycle.