Mujeres en las ciencias (Women in Science)

As a land that’s constantly in flux, Earth sometimes reveals clues about the plants, animals, and other organisms that lived long ago. Fossils teach us much about what life was like millions of years ago, answering the questions of how Earth changed and maybe even why it changed. This essential Earth science topic is thoroughly explained through manageable text, fact boxes, informational charts and diagrams, and a glossary and index. Readers will become young Earth detectives by the time they’re through with this text!

We use machines every day, but most of us don't understand how they work. When they break down, most of us have no idea how to fix them. Mechanics are the masters of machines. Readers learn that mechanics work on vehicles, including cars, boats, and buses. They use special tools to take them apart and fix what's wrong, and they use their experience and technology to diagnose problems. They often work long hours, sometimes in bad weather, to get us where we need to go. Your readers will see that mechanics keep our world moving and growing.

You've only got one day to spend at the carnival-how do you make the most of your time? Students will learn how to measure time while reading about a fun-filled day at a carnival! This fiction Spanish book uses real-world examples to teach math concepts, and incorporates nonfiction reading to increase vocabulary and comprehension skills. The challenging practice problems, graphs, and sidebars provide many opportunities for students to practice their developing math skills, and apply what they've learned to their daily lives. Essential text features like a glossary, index, and table of...

Una detallada e ilustrativa explicación de por qué nosotros y todo lo que nos rodea está hecho del mismo Material de las estrellas. Este libro ilustrado es una adaptación para niños y niñas del afamado título Hijos de las estrellas, de María Teresa Ruiz. En él, los lectores conocerán cómo la autora llegó a convertirse en astrónoma, la importancia de la curiosidad para poder dar respuesta a los grandes misterios del universo, y cómo nosotros, los seres humanos, estamos íntimamente relacionados con la vida y la muerte de una estrella. Las ilustraciones están a cargo de Valentina ...

"Las tijernas son una herramienta básica, y este libro es la mejor manera de introducirlas a su hijo (a). Utilice este libro para ayudar a su hijo (a) a practicar cortando con tijeras y de esta manera mejorar su destreza manual."--Cover.