La Energía Solar (Solar Energy)

Follows The Thirteenth Amendment That Freed The Slaves, The End Of The War, And The Death Of President Abraham Lincoln.

Follows the Thirteen the Amendment that freed the slaves, end of the war, and the death of President Abraham Lincoln.

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.

The American Revolution was a momentous period in American history. In this thought-provoking book, readers will analyze the myriad of opinions surrounding the Revolutionary War. They will identify the popular beliefs of Revolutionary contemporaries and question how historians and American citizens have interpreted information about the war in the years that followed. This book is an excellent resource for inspiring critical thinking both within the classroom and in the real world.

Readers won't have to disassemble their favorite toys to discover what makes them work. This book explores electric, magnetic, and motion-powered toys from design to function. It introduces readers to the six simple machines and explains how they use force and motion to do work. Not every toy is a technological marvel. Readers learn about time-honored favorites including the rocking horse, Slinky, and rattles.

Anticipándose a los pronósticos más pesimistas, el volcán de Cumbre Vieja, en la isla de la Palma, ha terminado por fracturarse y millones de toneladas de roca se han precipitado al mar. La consecuencia es la formación de una ola gigantesca que se propaga

When Eco the bear realizes that his friends the bees are missing, he decides to go look for them. His journey takes him around the world where he meets 11 different characters attempting to solve some of the world's greatest problems—air and water pollution, consumerism, extinction, deforestation, global warming, hunger, lack of education, poverty, and war. Each chapter focuses on one world problem and includes activities for children to learn about the social and ecological issues involved with each. Cuando Eco el osito se da cuenta de que sus amigos las abejas han desaparecido, decide ir...