Trayectoria de choque: Los asteroides y la Tierra (Collision Course: Asteroids and Earth)

Introduces readers to amphibians and the concept of classes of animals. Simple text describes the common features and behaviors of amphibians as well as offering many examples of creatures in this group.

Vivid photographs and bilingual text explain each food group, revealing how each group is important for good health, how to make healthy choices, and fun things children can do to stay in shape.

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.

Magnífico libro ilustrado que cuenta desde una óptica distinta las 23 leyendas más famosas de los héroes y dioses de la mitología. Tras cada leyenda, un apartado explicará curiosidades poco conocidas que han permanecido en el tiempo y han pasado a formar parte de nuestra tradición.