El cerebro (Brain)

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.

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: Mysterious events occur all over the world. It rains fish every year in Honduras, rocks in Pennsylvania make music, and large drawings can be found on the desert floors in Peru! In this Spanish-translated nonfiction book, readers will learn about these strange phenomena and more curiosities like ESP and crop circles in this baffling and fascinating nonfiction title. Vibrant images and intriguing facts in conjunction with a glossary of terms, informational text, and an index keep readers captivated from cover to cover!

Esta obra pretende desarrollar la comprension estrategica del jugador y asi permitirle mejores resultados.

He aquí una excelente colección de las denominadas “frases y citas célebres”, supuestas o no, pronunciadas en la más diversas épocas y países según la tradición, por personajes en general importantes (de aquí el epíteto aplicado a las frases y citas) como emperadores, reyes, escritores y artistas. Al no existir la tecnología actual han sido conservadas desde hace mucho tiempo por tradición oral y escrita en documentos antiguos. Es imposible aseverar la autenticidad de todas, pero como dice el refrán italiano: “si no son ciertas, están bien encontradas”.

Excite your fifth grade students with this captivating nonfiction title, which explores the many technological advancements made throughout history. The interesting and intriguing facts found within the informational text, along with vivid images, diagrams, and charts, inspire curiosity in readers as they learn about miraculous inventions like the hologram, 3D printing, virtual reality technology, personalized medicine, and bionic body parts. This Spanish-translated nonfiction title will engage and encourage readers to imagine the next big technological innovation that could change the world. ...

Este libro te enseñará a ponerte en marcha y a conseguir lo que quieras, ya sea más tiempo, más dinero, más salud, más amor, más felicidad o más libertad. Gracias a este libro aprenderás a: visualizar tu futuro y a convertirlo en realidad; conseguir tus