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.

Una guía paso a paso para diseñar un proyecto de vida emocionante. El Dr. Juan Pablo Aguilar, consultor, investigador, escritor y conferencista, comparte en Arquitectura Personal 10 pasos para diseñar un proyecto de vida emocionante un manual realista, probado y fácil de seguir para diseñar tu proyecto de vida. Si eres un joven de entre 15 y 90 años, si estás estudiando, acabas de graduarte o ya te jubilaste, si tu pareja y tú quieren diseñar su proyecto de vida, si tu último hijo acaba de independizarse (o eres tú quien se va a independizar), si ha habido cambios importantes en tu ...

Celebrating the life, growth, and development of baby animals, Starting Out narrates the tale of growing up in the wild. This series--now in Spanish as well as English--employs simple language and a unique first-person perspective to introduce foundational biological concepts as it follows the adorable animal through the start of its young life. The straightforward text and large photos of the animal in its natural environment will both entertain and enlighten as readers learn how the animal's physical features, diet, habitat, and familial relationships play a role in its growth and...

Espía, explora, esconde, ¡shht!, muévete como un ninja, experimenta, viaja, conoce, planea, conquista. Un manual con 50 misiones. 50 retos para verdaderos agentes secretos. ¿Crees que podrás sobrevivir en el mundo de los adultos?

A closer look at the stomach and how it works with the digestive system to give the body the nutrients it needs to stay healthy.