Gaturro 1

Biographical And Science-Related Information, Examining The Life Of Albert Einstein And His Knowledge Of Physics.

Defines pulleys, explains their functions, and suggests simple experiments to demonstrate how they work.

Grandes ideas para pequeños filósofos. ¡Tu primer libro pensar en grande! Es importante saber qué te hace feliz y cómo hacer felices a quienes quieres. ¿Sabes qué decía Aristóteles sobre la felicidad? Aristóteles creía que la mejor manera de vivir una vida feliz era llenarla de verdaderos amigos. Este libro inspirará a los más pequeños a tener pensamientos y conversaciones apasionantes sobre estas grandes ideas.

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...