El corazón (Heart) (Spanish Version)

Readers won't have to disassemble their favorite toys to discover what makes them work. This book explores electric, magnetic, and motion-powered toys from design to function. It introduces readers to the six simple machines and explains how they use force and motion to do work. Not every toy is a technological marvel. Readers learn about time-honored favorites including the rocking horse, Slinky, and rattles.

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.

Invite readers along on the preparations for a soccer tournament! With informational, Spanish-translated text, vibrant photos and charts, children are engaged from cover to cover while utilizing mathematical skills to increase understanding of all aspects of soccer, including sportsmanship and tournaments.

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!

Introduces the former Duke University basketball star, Grant Hill, who now plays for the Detroit Pistons.

La energía es elemento fundamental del mundo contemporáneo, y ha sido la base del desarrollo y dominación del entorno que, nuestra especie, ha venido realizando sobre el entorno y el mundo que nos rodea. Cada nuevo salto en la cultura o en la civilización ha traído aparejado un aumento en la energía (tanto en la producción como en el gasto); por lo tanto, es un componente vital de la sociedad contemporánea. Este libro explora los distintos tipos de energías que existen y se mueve en un amplio abanico porque, entre la energía de los propios músculos y la moderna energía eólica, la ...

Suitable for training advanced level students in writing texts in different styles and registers in Spanish

¿Por qué es importante reciclar? ¿Cómo podemos nosotros contribuir al reciclaje? Acompaña a los protagonistas de esta historia y encontrarás las respuestas a esas preguntas. El libro incluye notas para padres y profesores, así como actividades lúdicas que ayudarán a reforzar su contenido.