Experimentos sencillos con sólidos y líquidos

Discusses the discovery and escavation of King Tutankhamen's tomb and the myth of the curse that seemed to afflict those involved in the tomb's exploration.

Discover how the heart and lungs work together to keep the blood flowing and the body breathing in this book that provides pictures of real hearts and lungs and accompanying diagrams. Readers will learn about circulation and breathing as well as related vocabulary.

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...

"This book is something I wish I could have read when I was younger." --Roxane Gay, from the foreword of Feminism Is... It didn't just start with #MeToo. Today's feminism is more diverse than ever before and asks all kinds of questions. Combining insightful text with graphic illustrations, Feminism Is...tackles topics including intersectionality, the gender pay gap, the male gaze, and mansplaining. Find out what equality for women really means, get a short history of feminism, and take a look at the concerns affecting women at work, in the home, and around sex and identity. Get answers to the ...