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

"In search of "Don Quixote" from other side of the estimate that there are no gaps between the various fields of knowledge and literary productions that are specific manifestations of a global representation system historically determined. So, it seemed necessary to put Don Quixote in its various circumstances, linking it to the contexts under which it has set, especially regarding attitudes and references involved, not to mention the cultural particularities that arise in him, both scholarly and popular. Hence, the approaches used, of a historical, anthropological and literary, to go for the ...

Focuses on NSTA Standards of understanding science and technology. Explores the position of motion of objects.

The world is filled with curious objects made by plants, animals, and even by the Earth itself. Dive into this collection of more than 100 intriguing items from the natural world and discover the stories behind them. Learn how huge whales eat tiny animals from looking at their bristly teeth, why butterflies shine and glitter in the sunlight from seeing their minute wing scales, how plants transport water and food around from examining a delicate leaf skeleton, and what makes every snowflake unique from admiring their miniature, branching crystals of ice. Birds' eggs, a lump of coal, a glass...

DISCOVER WHO LIVED IN CASTLES, WHAT THEY ATE, WHERE THEY SLEPT AND WHAT THEY DID FOR FUN. PHOTOGRAPHS COMBINED WITH COMPUTER GRAPHICS TAKE YOU INSIDE THE WORLD OF CASTLES AS NEVER BEFORE.