Productores y consumidores (Producers and Consumers)

Asteroids and comets shoot straight through space. They just look like bright lights with tails, but there is much more to these fascinating objects! Learn all about asteroids and comets in this Spanish-translated book.

Do you know the important skills it takes to survive in the jungle? Learn about them in this useful, Spanish-translated nonfiction title. With helpful diagrams, vital tips and instructions, vivid images, and a glossary of useful terms, this title will have readers feeling aware and prepared!

There are millions of animals that call the ocean home. Some of these animals are in danger. Readers will learn about marine animals that are at risk of becoming endangered and what people and activists like Jacques Cousteau have done to help. Readers will also learn about the causes of endangered animals, including pollution and overfishing and learn steps they can do to help the conservation and preservation of these beautiful animals and sea life. Through vibrant images, informational text, stunning facts, a glossary of terms, and a list of additional resources, readers are sure to be...

What does swimming in a pool, drinking through a straw, breathing in air, and circulating blood all have in common? They all require a form of air or water pressure! Readers will discover the variety of ways that air and water pressure make an impact on our lives and the things in them. This fact-filled, Spanish-translated nonfiction title includes real-life examples and basic experiments to aid in the development of understanding physic and scientific concepts. Readers will be introduced to and learn about Archimedes Principle, atmospheric pressure, vacuums, water density, and hydraulics...

Ante la importancia de la educación como base de la competitividad en una economía basada en el conocimiento, las universidades han incrementado su atención en la calidad de sus programas de doctorado. Sin embargo, se aprecia que aún son escasas las instituciones educativas que tienen en su programa, una asignatura destinada a cómo escribir y publicar una tesis doctoral. Este libro es el resultado de varios años de experiencia en supervisión de tesis doctorales en programas de diversas universidades. Los contenidos y la estructuración de los mismos han sido contrastados con alumnos y...

Updated for 2020, great photographs capture children’s attention as they read about different ways animals use their voices, ears, eyes, and mouths in this cute book.

These biographies introduce young readers to important figures in American history. Ideal for reports and correlated to the social studies curriculum, the series presents a straightforward account of each individual's life and times and describes how each person contributed to the shaping of our nation.