Deconstruir las drogas

Examines prehistoric cave bears, including their biology, hunting techniques, and lifestyles. Discusses possible reasons for their extinction.

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.

During the summer, it is warm outside. During the winter, it is cold. This is because of seasons. This Spanish science reader introduces students to the seasons. With easy-to-read text and vivid images, this book teaches students important scientific subjects and vocabulary terms like migrate, hibernate, cycle, and harvest. Aligned to state and national standards, the book contains nonfiction text features like an index, a glossary, captions, and bold font to keep students connected to the text. A hands-on science experiment helps students apply what they have learned and develops critical...

"Así ve Maxi, el cuarto de cinco hermanos, la figura de su padre. Peronista, aunque trabaja con los radicales, televidente compulsivo, alcohólico, algunas veces periodista, hincha de River o de Boca, según la conveniencia, golpeador y, sobre todo, una incógnita"--Cover.