Energía del viento

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

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

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

Read Along or Enhanced eBook: Welcome to Canada! From its majestic mountains to its exciting sports, readers are invited to explore what makes Canada so special in this exciting, Spanish-translated nonfiction title! With informational text, fresh vocabulary, and engaging maps, readers will be engaged from beginning to end.

How do you truly engage students in learning history? When students make personal connections to the subject, they’re much more motivated to learn. This Spanish book provides firsthand accounts of history that give personal insights into historical events. This primary source book focuses on the history of California’s Native American tribes: the Tongva, Yokuts, Yana, and Yahi. With a visually appealing layout, this book features captivating text, fun facts, sidebars, and time lines that help students grasp the essential concepts they need to know at their grade level. Packed with...

Este libro explora que es lo que sucede dentro y fuera de nuestro mundo, desde un volcán incadescente al Polo Norte helado.

Una guía optimista para cuidar y proteger nuestro planeta. Nadie quiere pensar en la basura (normal, da asquito). Pero aunque no te des cuenta, los desechos ya forman parte de nuestras vidas. ¿De donde sale la basura y dónde acaba? ¿Cuánto tarda en descomponerse? ¿Y qué podemos hacer para ayudar a nuestro planeta? Prepárate para cambiar cómo ves los residuos y cómo luchas contra ellos desde casa. Prepárate para ayudar a tu planeta.