La búsqueda de la velocidad: Los vehículos (The Quest for Speed: Vehicles) (Spanish Version)

Where is your brain exactly? What does it do? Use your brain to read this engaging, Spanish-translated title and learn all about it!

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. This 6-Pack includes six...

Un grupo de cazadores mata a un oso en los bosques cercanos a Kiruna. Cuando abren el vientre del animal, encuentran un dedo humano entre las vísceras. Unos meses más tarde, hallan a una mujer asesinada en su casa. Ha sido brutalmente agredida con una horqueta hasta la muerte. Markus, su nieto de siete años, ha desaparecido. La fiscal del distrito, Rebecka Martinsson, que en un principio se iba a hacer cargo de la investigación, es retirada del caso. Por su cuenta y riesgo empieza a indagar en el asesinato de la mujer: la muerte parece perseguir a esta familia, y Rebecka no está...

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...

Grouped by area, this illustrated book introduces children to the world's greatest cities. They include New York, Lima, Venice, Athens, Hong Kong, Bombay, Cairo, Nairobi, Brisbane, and Honolulu.

Readlings science books use information-packed photographs and a repeating sentence pattern to introduce beginning readers to wild and endangered animals.