La compra de Luisiana (The Louisiana Purchase)

Swamps are one kind of wetland biome. Like other wetland biomes, a swamp’s water must be clean in order for the wildlife in it to thrive. Readers learn the main features of both freshwater and saltwater swamps, as well as where some of the biggest swamps are on Earth. Science curriculum topics such as food chains and conservation make the main content a great complement to classroom learning. Full-color photographs and inset maps aid readers in identifying this interesting biome in the world around them.

Fiel a su cita, llega una nueva entrega de Los chistes más morrocotudos de Geronimo Stilton. En este caso, Geronimo y compañía han recopilado los mejores chistes sobre animales: más de 500 chistes nuevos para partirse de risa... palabra de Stilton, Geronimo Stilton. ¡No te los puedes perder!

Gus, el tercer hijo de la familia Oliver, vivía en una gran casa rodeada de manzanos en la ladera de una colina. A Gus, que tenía unos diez años, le llamaban Cara de piedra porque solía presentar un aspecto impasible y aguantaba la mirada como nadie. Un día su hermana Serena encuentra un perro que andaba suelto, un viejo perro negro con una mancha blanca en el rabo. Casi al mismo tiempo llegaba de visita a la casa de la tía-abuela Hattie, una señora muy original. En pleno temporal de nieve, el perro de Serena se ha escapado y temen que haya caído en una trampa para lobos. A ruegos de...

Our closest solar system is about 10 light years away. It has two main types of planets. Some are rocky and small, like planet Earth, while others are huge balls of gas, like Jupiter. Learn about how astronomers once thought our solar system was the one and only, to how they have now discovered hundreds of stars with planets orbiting them, which means there could be billions of solar systems in outer space! Just maybe, these alien worlds could host life, like our own amazing planet. This book allows students to use observations of the Sun, moon, and stars to describe patterns that can be...

Few kids can resist jumping into a big puddle. Getting wet can be fun. Learning to describe objects as wet can be fun, too, as evidenced in the bright, entertaining photographs and simple, engaging text in this motivating book. Readers will love to identify the objects within these pages, selected to appeal to them, and use the objects to comprehend new vocabulary words in corresponding sentences.