Productores y consumidores (Producers and Consumers)

Most of the Earth's changes happen over millions of years, but earthquakes can force significant changes to the land in just a few moments. Readers will learn the science of plate tectonics and its role in the development of earthquakes around the globe. They will also learn that not all rocks are created equal. In fact, rocks are all different ages! This Spanish-translated book concludes with images of the damage and destruction that earthquakes can cause.

There is so much to explore in the Amazon! Readers are taken on an adventure through the Amazon rainforest to learn about the lush plants and beautiful animals, deforestation, and rainforest conservation in this fascinating, Spanish-translated nonfiction title that features striking photographs and riveting facts.

Edición crítica con estudio introductorio y guía de lectura. 1967 fue un año mágico para Mario Vargas Llosa. Además de la publicación de Los cachorros, el peruano recibió el Premio Rómulo Gallegos, asistió en directo a la eclosión del boom junto con su nuevo amigo Gabriel García Márquez, participó en el XIII Congreso del Instituto Internacional de Literatura Iberoamericana en Caracas, mantuvo en agosto encuentros multitudinarios con escritores y numeroso público general que abarrotaba grandes salas, y en septiembre, para terminar el ciclo, su periplo culminó en varias...

Computer science is all around us, at school, at home, and in the community. This book gives readers the essential tools they need to understand the computer science concept of problem decomposition. Brilliant color photographs and accessible text will engage readers and allow them to connect deeply with the concept. The computer science topic is paired with an age-appropriate curricular topic to deepen readers' learning experience and show how problem decomposition works in the real world. In this book, readers will learn how to break down their research into different kinds of sources. This ...

En una edad de tinieblas, donde la vida cotidiana discurre a menudo entre hechizos y ensalmos, cualquiera puede pasar por brujo. La sabia ironía de Ángeles de Irisarri conduce estas seis Historias de brujas medievales, uniendo a su proverbial sentido del humor la construcción de un universo propio en el que las a veces mal llamadas brujas no dejan de ser mujeres de carne y hueso.

Following the stock market crash of 1929, the United States plummeted into the Great Depression and unemployment soared. But when Franklin D. Roosevelt took office the following year, he enacted federal programs, financial regulations, and public works projects to boost the economy and put America back together. In this instructive volume, students will discover fascinating facts and little-known details about this series of reforms, called the New Deal. They'll also be able to choose from a variety of hands-on projects, from map-making to writing and performing a speech to designing and...