Diario de una ausencia

Oceans cover 70 percent of the Earth's surface, providing students with a variety of plant and animal life to learn about. An ocean biome includes the saltwater below the waves and everything on, above, and near the surface. Students will also learn about the beach, tides, cliffs, bays, coastlines, coral reefs, and tide pools in this Spanish-translated title.

Únete a Tortuguito en su increible viaje desde la playa donde nació y a donde vuelve tiempo después, en un viaje increíble y peligroso. él tiene que ser valiente, tiene que ser audaz y todo debe hacerlo por su cuenta.

The most secret and elite of special forces groups, U.S. Army Delta Force fights terrorism, hunts down war criminals, and performs dangerous surveillance missions.

Bridges are a big part of how people get from place to place. But how do they work and how are they built? In this engaging text, readers will explore these important engineering marvels that link places divided by water. Along the way they’ll learn how to build their own model bridge with a step-by-step guide accompanied by full-color photographs of each step. Accessible text illuminates the science behind every span we drive over—and sometimes under!