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

How many hockey sticks are there? How many hockey players? Early readers will learn to count cardinal numbers with this Spanish book for kids. With bright images and simple text, this full-color book develops students' math and reading skills. The Math Talk questions build fluency and comprehension of basic math concepts. Perfect for shared or guided reading, this nonfiction kids book is ideal for kindergarten and ages 4-6.

There is a bright light in the night sky. Sometimes it is round like a ball, sometimes it is a crescent, and sometimes it is not there at all! What is this strange and changing thing? It is the moon, of course! Read all about our moon and the moons surrounding other planets in this Spanish-translated book.

Esta colección aborda las aventuras de una pandilla muy imaginativa, los pequeños aventureros. Son aventuras reales a veces o por veces imaginadas por el grupito. Mucha acción y diversión sana para los niños. En este libro la aventura es imaginada por los pequeños aventureros. Son perseguidos por los terribles gusanos gigantes de color naranja. Los Pequeños Aventureros serán capazes de vencer a de los gusanos gigantes?

Why do some things heat up quickly while others don't? How can heat cause matter to change form from solid to liquid to gas and back again? Heat cannot be seen, but it can easily be felt. Looking at different objects' molecular makeup, this book describes the fundamentals of heat and furthers understanding through a series of easy experiments.