Energía del viento

Follows the life and career of the French scientist who proved the existence of germs and their connection with diseases.

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

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

Cerca de 100 animales se esconden en cada una de las ilustraciones a doble pgina que contiene este libro. Las escenas representan la fauna y los distintos hbitats de la Tierra, desde el abrasador desierto del Shara hasta las glidas regiones rticas, los pantanos de Florida y la Gran Barrera de Coral australiana. Los animales del mundo es un libro para pasar muchas horas entretenidas. Adems, junto al dibujo de cada animal se incluyen datos y curiosidades presentados de forma clara y concisa.

Learn the secrets to artful cupcakes, oven-fresh bread, and other delicious baked goods in this delightful nonfiction title. Readers will learn how mathematics helps bakers measure their ingredients to make tasteful treats. Featuring vibrant images and charts, informative text, and fun, intriguing facts, this Spanish-translated nonfiction book will leave children fascinated by all the details that go into baking their favorite treats--like doughnuts and cookies!

What’s the difference between a seal and a sea lion? These “second cousins” of the sea look similar, but there are many ways to tell these creatures apart. From ear shape to the noises they make to communicate, seals and sea lions are amazing creatures with both shared features and many truly unique attributes. They both share an ocean habitat, but when readers take a closer look, it’s easy to discover how they each fight off predators, mate, and raise their young in different ways. Captivating full-color photographs help to bring these marvelous mammals to vivid life.

Esta es la primera parte de una historia de dos. No contada de una forma narrativa con orden cronológico, sino contada desde momentos clave, de sentimientos guardados y expulsados en papel. Las mejores historias siempre te obligan a hacer algo al respecto. Este libro es la parte oculta de la química, el dolor, el éxtasis, el miedo y la soledad que uno siente en la vida.