La Energía Solar (Solar Energy)

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

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

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.

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.

La novela de Mark Alpert gira entorno a la idea de que Albert Einstein descubrió una teoría del campo unificado, pero escondió el resultado temiendo que pudiera llevar a crear armas más poderosas que la bomba atómica. En nuestros días, muchos compiten por ser los primeros en descubrir el secreto de Einstein: el gobierno de los Estados Unidos, un mercenario despiadado movido por la venganza y varios científicos. El físico Hans Kleinman, que en su día fur asistente de Einstein es torturado por un intruso que le exige que divulgue la teoría. Días más tarde, el profesor universitario...

Stem Technology Is A Very Important Topic In Today's World And This Book Will Allow Students To Learn More About Atoms, Molecules, And How Different Temperatures And Situations Affect Them. It Also Introduces Them To The Periodic Table Of Elements And How Even Today More Elements Are Being Discovered And The Periodic Table Continues To Grow.

Photographs and easy-to-read text introduce the major food groups and explain the nutritional contributions of each.

English Spanish Bilingual Children's Book Perfect for kids studying English or Spanish as their second language. In this children's book, Jimmy, the little bunny, explores autumn, his favorite season. He enjoys being outside and playing with colorful leaves. When it starts raining, he and his family find interesting activities to do at home. They spend a wonderful day together, no matter the weather.