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

"Cuando Daniel Hernández tenía veinte años, trabajaba como pasante con la congresista Gabrielle Giffords. El 8 de enero de 2011, alguien disparó contra Giffords. La agilidad mental de Daniel le salvó la vida a Giffords hasta que llegaron los paramédicos y la llevaron al hospital. Muchos han reconocido la valentía y heroísmo de Hernández, incluyendo al presidente Barack Obama. Sin embargo, aunque tal vez ese haya sido su momento más visible y de mayor fama, Daniel Hernández es un extraordinario individuo que ha tenido ya muchos logros en su corta vida y se propone conquistar muchos...

Follows the adventures of Max Axiom as he explains the science behind forces and motion. Written in graphic-novel format.

What has lots of tiny eyes, a hard shiny body, and huge black claws? If you guessed an emperor scorpion, you're right! This book introduces early readers to a mystery animal by describing its features, one by one, using short simple sentences and eye-popping full-color photos. At the end of the book, the secret animal is revealed across a colorful, two-page spread. Young children will love showing off their beginning reading skills as they learn about this dazzling collection of wild and wonderful zoo animals--one clue at a time! Fast facts and habitat maps at the end of the book provide...

Learn multiplication on a fun-filled trip to the supermarket! The displays, shelves, and layout of a local grocery store provide ample opportunities for students to learn multiplication as they are engaged in reading high-interest content. This Spanish book combines mathematics and literacy skills, and uses practical, real-world examples of problem solving to teach math and language arts content. The full-color images, math graphs and charts, and practice problems make learning math easy and fun. The table of contents, glossary, and index will further understanding of math and reading...