La represa de Itaipú

Describes how the rig was built, how it stands out in the water, and how much drilling it does in a day.

Ofrece una explicación de las soluciones y mezclas y en qué se diferencian, así como ejemplos de mezclas y soluciones.

Enter the world of oceans and the animals that live in them. Swim with jellyfish, wonder at the busy life of a seagrass meadow, and fence with narwhals. Fish, sharks, whales, and invertebrates swim through the pages of this colorful ocean book, which combines gorgeous illustrations and photos to help young enthusiasts learn all about the world's oceans. From glowing jellyfish to deep sea dwellers, they'll discover the incredible secret world of life under the sea. They'll also find out how they can help take care of the ocean themselves. Earth's Incredible Oceans, written by ocean expert Jess ...

Young readers are introduced to the many changes children experience in their early years. The simple text takes readers on a journey from the day a child is born through the first six years of life.

"Pintar con las manos es un libro de dibujo con sencillas instrucciones, paso a paso, que los niños pueden sequir con facilidad. Además, como los dibujos no requieren un dominio preciso de las manos, incluso los más pequeños lograrán bonitos resultados"--Cover.