La lana de la oveja

¡Estar atento! ¡Hay un tiburón! Aprenda todo sobre este famoso depredador y vea fotografías de color de la variedad de tipos, desde un pequeño cachorro (tiburón bebé) hasta un gran blanco. Los diagramas ayudarán a los lectores a identificar las partes del cuerpo de los tiburones, mientras que las preguntas de pensamiento crítico y otras grandes características ayudan a desarrollar habilidades de lectura de no ficción. Look out! There's a shark! Learn all about this famous predator and see full-color photographs of the variety of types, from a small pup (baby shark) to a Great...

Kids use pencils everyday. Read to find out how a pencil is made. Paired to the fiction title Where is My Eraser?.

[English] What is the difference between a savanna and a prairie? How do bison, zebras, and other grazers avoid hungry grassland predators? Trek across the plant-covered landscape of this book, and find out what makes grasslands one of Earth's treasures. [Spanish] ¿Qué diferencia hay entre una sabana y una pradera? ¿Cómo escapan los bisontes y las cebras de los depredadores? Camina entre los altos pastos de este libro. Descubrirás por qué los pastizales son uno de los grandes tesoros de la Tierra.

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...