Hacia un mundo verde

Explains The Early History Of How The Bill Of Rights Came To Be And How It Is Used To Protect Citizens.

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

Pupi, el simpático extraterrestre, se ha quedado a dormir en casa de su amigo Nachete. Todo es muy divertido hasta que llegan unos sorprendentes invitados, y las antenas del extraterrestre empiezan a girar. ¿Qué peripecias correrán los dos amigos? Un libro con grandes dosis de humor y ternura.

Un cuento con puzles magnéticos y 20 imanes de princesas. ¿Qué ocurre si se enfada una princesa que tiene polvos mágicos? ¡Sorpresa, sorpresa! Lee el cuento y luego utiliza los imanes para crear tus propias princesas. ¡Hay hasta 100 combinaciones posibles!

Photosynthesis is the basis for all life on Earth! This exciting and sensitive book looks at how plants take a gas that is poisonous to people and animals and, with the help of the Sun, create food and oxygen for all creatures. Children will delight at learning about the little chloroplast factories inside the leaves of plants and become aware of how important plants really are! Children of all ages will love this book!

The nineteenth century was a time of huge growth and prosperity for California. Although the Gold Rush lasted only seven years, California provided other opportunities for those who emigrated there in search of a better life. This Interactiv-eBook focuses on the history of San Francisco, Los Angeles, Sacramento, and Fresno, and the people and events that influenced their transformations from small towns to booming cities. This nonfiction text builds literacy and social studies content knowledge through the use of intriguing primary source documents like maps, letters, images, articles, and...