Energía del viento

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

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.

In Bosques, carefully leveled text and vibrant, full-color photographs take beginning readers on a tour of a temperate forest. Readers learn about this important ecosystem and the variety of living things adapted to live there.

California is home to the largest school system in the country. Students will learn about the history of California’s schools and higher education system with this nonfiction text that builds students’ reading skills and social studies content knowledge. The intriguing primary source maps, letters, documents, and images provide authentic nonfiction reading materials and keep students interested in learning. Text features include a glossary, index, captions, sidebars, and table of contents. This book connects to California state studies standards and the NCSS/C3 Framework and features...

This book introduces readers to what it means to celebrate Divali, and shows them why this holiday is special.

En todo el mundo, las mujeres siempre han soñado en grande, aun cuando les han dicho que sus sueños no cuentan. Han alzado sus voces, se han levantado en protesta y han luchado por lo que es justo, a pesar de que, a veces, sus voces han sido silenciadas. Ya sea en las ciencias, las artes, los deportes o como activistas, mujeres y niñas a lo largo de la historia han luchado por romper barreras y cambiar el statu quo. No han permitido que otros se interpongan en su camino, nos han ayudado a entender mejor nuestro mundo y lo que es posible lograr. En este segundo libro, compañero de Ella...