Energía del viento

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.

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

Follows the life and career of the French scientist who proved the existence of germs and their connection with diseases.

Computer science is all around us, at school, at home, and in the community. Anyone can learn computer science, even at the elementary school level. This book delves into essential computer science concepts using age-appropriate language and colorful images. The computer science topic is paired with an age-appropriate curricular topic to deepen readers’ learning experience. The instructional guide on the inside front and back covers provides: Vocabulary, Background knowledge, Text-dependent questions, Whole class activities, and Independent activities.

The reflection that is presented in this book is born of direct contact with schools that have a multicultural public, its dialogue with the faculty and pupils of these schools, and of the queries raised by its research in intercultural education.

California became a territory in the United States when the Treaty of Guadalupe Hidalgo was signed in 1848. That treaty ended the Mexican War. Several days before its signing, gold was discovered at Sutter’s Mill in what is now Sacramento. The non-Native population of the territory was less than one thousand in 1848, but the gold rush increased that number to one hundred thousand by the end of 1849. The gold rush not only made many people wealthy, it brought ecologic devastation while speeding up California’s statehood. This book richly explores this interesting history.

Learn about the rich history of Mission San José: how it started, the people who ran it, the indigenous population, and its legacy today.