¿Caimán o cocodrilo? (Alligator or Crocodile?)

What’s the difference between a seal and a sea lion? These “second cousins” of the sea look similar, but there are many ways to tell these creatures apart. From ear shape to the noises they make to communicate, seals and sea lions are amazing creatures with both shared features and many truly unique attributes. They both share an ocean habitat, but when readers take a closer look, it’s easy to discover how they each fight off predators, mate, and raise their young in different ways. Captivating full-color photographs help to bring these marvelous mammals to vivid life.

It is time to learn about living things! Can you spot which things are living? Can you tell which things are nonliving? With images that are easy to identify and clear, simple sentence structures, this Spanish science reader simplifies scientific concepts for young readers. A fun and easy science experiment and Your Turn! activity provide more in-depth opportunities for additional learning. Nonfiction text features include a glossary and an index. Engage young learners with this dynamic text!

¡Vroom! Siga leyendo para aprender sobre las motocicletas y sus jinetes. Grandes características como fotografías de color, diagramas y un glosario de fotos ayudan a los lectores jóvenes a navegar esta introducción a la no ficción. ¡Vamos a dar un paseo! Vroom! Read on to learn about motorcycles and their riders. Great features like full-color photographs, diagrams, and a photo glossary help young readers navigate this Spanish-language introduction to nonfiction. Let's go for a ride!

In the spring of 1895, Bud is excited for his Cadet Corps team to compete in the end-of-the-year drills competition at his school. His company is the favorite to win, but can they pull it off? This historical fiction book is based on a story by the African-American poet and playwright, Paul Laurence Dunbar. Especially appealing to reluctant readers, this 32-page historical fiction book features hi-lo text, full-color illustrations and a short chapter format.

Libro para adquirir el fundamento de los mecanismos teórico-prácticos de los equilibrios químicos que tienen lugar en disoluciones acuosas. Se inicia con una presentación de los compuestos químicos, de las reacciones químicas y las ecuaciones químicas con los conceptos estequiométricos necesarios para exponer la disociación electrolítica, sus consecuencias y las diversas formas químicas de cuantificar los compuestos en estado puro y en disolución, teniendo en cuenta su disociación y con la utilización de cifras significativas, explicando una estadística básica para la...