El árbol generoso

Read this book to find out about eyes and how they differ from animal to animal. This book uses simple, repetitive text to teach children about eyes using basic vocabulary and stunning photographs that show how eyes differ across a diverse selection of animals, including humans. Children learn what eyes are for, where they are found, and what eyes look like.

Fernando Martínez Laínez novela en esta serie la historia de uno de los ejércitos más importantes de todos los tiempos: los Tercios de Flandes, un ejército que marcó un hito en la historia militar universal. «La senda de los Tercios» es una obra con una labor de documentación impresionante y de rigor histórico colosal. « Ante todo era un soldado, y en las banderas, con sus camaradas, pasó sus mejores años. De soldado, tal como había vivido, pensaba fenecer, pobre y solitario, pero honrado. Todo lo honrado que se puede ser después de haber luchado en Flandes .» Las lanzas narra ...

Young readers will be inspired by this biography about the first woman to fly solo across the Atlantic. The appealing images, helpful text, and supportive timeline, glossary, table of contents, and index combine to create an engaging experience as readers learn about one of the greatest female pilots of all time. This book has been translated into Spanish.

What is work? You may think work is doing chores or going to a job, but you do work every time you move something from one place to another. With experiments that demonstrate these fundamental concepts, discover how you work, and how simple machines make doing work easier.