National Geographic Readers: Los Gatos vs. Los Perros (Cats vs. Dogs)

¿Sabías que la gente puede excavar y utilizar el calor de la Tierra para producir energía? Esta energía geotérmica puede alimentar tu computadora y calentar o enfriar tu hogar. Pero, ¿cómo se obtiene exactamente? ¿Y cuál es el impacto sobre el medioambiente? Lee este libro para aprender todo sobre la energía geotérmica. Did you know people can dig underground and use Earth's heat to make energy? This geothermal energy can power your computer and heat or cool your home. How exactly do we get it, though? And what is the impact on our environment? Read this book to find out all about...

We know very well that books are not just for reading and looking at, that is why our Put Your Fingers collection is designed for all those curious children who like to touch everything and discover the world with all their senses. A book with colorful illustrations, rhymed text and many holes for the little ones to play with the characters, learn and enhance their imagination, logic and manual skills.

Suitable for training advanced level students in writing texts in different styles and registers in Spanish

Many animals live in water, but only some can be defined as fish. Twenty-eight thousand species of fish exist, each with different characteristics. Readers from grades one through four will learn that fish have a distinct impact on their ecosystem and will see how fish survive when well-adapted to an uncompromised environment. Beautiful photographs demonstrate the great diversity of fish and accompany intellectually stimulating explanations of their varying roles and traits. From page to page, what a fish is unfolds in vocabulary call-outs, insightful questions, and relatable...