El cerebro (Brain)

Readers may never expect that they might free fall to Earth, but if they have ever dived into a pool, that's exactly what they've done. This book shows readers how Newton's three laws of motion affect divers, skydivers, and mountain climbers' movements. Readers discover who uses gravity, and who works against it, and all other forces that contribute to a successful dive or climb. After reading this book, readers can decide if they will ever be interested in engaging in one of these extreme sports.

Read Along or Enhanced eBook: From Stonehenge to the Bermuda Triangle, there are many places on Earth that remain a mystery to scientists! Readers will discover these curious places--and more!--as they move through this fascinating, Spanish-translated nonfiction title. This mysterious book features detailed images, informational text, and stimulating facts and theories in conjunction with upper-level features, such as chapter format, a glossary of terms, and an index.

The need for speed is the motivating factor in this engaging, Spanish book. Readers learn the history of travel from the very slow to the supersonic and beyond, including everything in between. They learn and discover the factors that influence motion for all types of vehicles: land, air, and water alike. They also learn different ways to measure speed and read about energy uses for different vehicles. With greater speed comes greater risk. Readers learn how engineers are always seeking new and better ways to keep people safe as they travel faster and go farther.

Presents commonly used Spanish words and phrases accompanied by illustrations of situations in which to use the newly acquired language.

The era of Anglo-American colonization, while brief, had a great impact on the development of Texas and the United States. Readers will discover what drew Anglo-American settlers to Texas, and what caused hostilities to rise between them and the Mexican Government. Frequent sidebars introduce readers to the key figures of this era.

MATEMOLA es una colección de seis cuadernos orientados a crear una base sólida para el desarrollo del pensamiento lógico-matemático. Las actividades del libro están pensadas para ayudar a los niños a interpretar la realidad y conocerla a través de la observación y la representación. Al final del cuaderno se propone un juego individual de memoria y atención para repasar algunos de los principales contenidos trabajados. Los cuadernos incluyen pegatinas para realizar las actividades de una forma amena y afianzar los conocimientos. Trabaja conceptos de numeración (números 1 al 9...

Presents aerial photographs of various scenes from around the world including fishermen in Morocco, a farm on the island of Crete, and a mangrove forest in New Caledonia.