Energía del viento

Provides The History Of Biofuels, Different Uses, Positive And Negative Characteristics, And How They Will Impact The Future.

A simple biography of the naturalist who founded the Sierra Club and was influential in establishing the national park system.

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

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

Besides oil, Texas has long been associated with cattle and agriculture. Learning about these industries will allow readers understand how valuable their development is to the growth of the state of Texas, as well as America's economy.

Introduce cachalotes, incluyendo sus diferentes partes del cuerpo, la forma en que viajan en grupos, lo que comen, y cómo cuidan a sus crías.

What makes something a good value? Why is it important to use money wisely? How will creating a budget help you purchase a new bike? This engaging Spanish book will teach students financial literacy through the use of real-world examples while incorporating nonfiction reading to increase vocabulary and comprehension skills. The challenging practice problems, graphs, and sidebars provide many opportunities for students to practice their developing math skills, and apply what they've learned to their daily lives. Essential text features like a glossary, index, and table of contents will...

For soccer fans, the unstoppable Cristiano Ronaldo has become a household name. What goes into the making of such a phenomenal player? What was he like when he was young and still learning? This book takes a close look at one of the greatest soccer players in the world right now. Young readers will love to learn about his jaw-dropping achievements and also learn about what shaped him into a record-breaking athlete. Ronaldo's story will inspire both the curious new soccer fans as well as those already bit by soccer mania.