Experimentos sencillos sobre el tiempo

A selection of dazzling, full-color graphic novels offer an appealing way to deliver social studies content, chronicling the lives of inspiring individuals, from important historical figures to famous musicians.

Who were the earliest Americans? When, how, and from where did they enter and spread across the continent? And what is their relationship to modern Native Americans? Anthropologists develop theories to answer these questions based on the evidence they discover. Their theories—and the discoveries that prove and disprove them—are highlighted in this fascinating volume, full of awe-inspiring facts and incredible breakthroughs. Readers will feel like anthropologists and archaeologists themselves as they read about bones and artifacts, and what they reveal about the ancient cultures that roamed...

Learn About The Destructive Effect Non-Native Animals Have On Native Plants And Animals When They Invade An Environment.

Martes con mi viejo profesor es un libro que nació de los encuentros de cada martes entre el periodista Mitch Albom y su antiguo profesor de la universidad, Morrie Schwartz, y se ha convertido en un extraordinario best seller en todo el mundo.Se trata de un libro sencillo e intenso a la bez, que nos lleva a reflexionar gracias a las profundas verdades que encierra. Además constituye un extraordinario testamento espiritual y una formidable lección de vida para todos.