Portaaviones (Aircraft Carriers)

What is matter and where can it be found? Everything in the world is made of matter, whether it is a solid, a liquid, or a gas. Important ideas about matter such as volume, mass, and how matter changes state are conveyed through a series of easy-to-do experiments.

Existen muchos tipos de inventos: inventos fáciles y difíciles; importantes o insignificantes; inventos para hacer reír e inventos que hacen llorar; inventos que sanan frente a otros que matan; inventos que nos ayudan a ser felices e inventos que ni siquiera lo intentan. Con este libro tendrás la oportunidad de pensar sin límites en tu propio invento. Esta colección consta de cinco libros, cada uno de los cuales incluye una serie de preguntas y de respuestas sobre temas que enriquecerán al niño en su visión del ser humano, la vida y el mundo. Las preguntas no solo generarán debates...

Teach students about the years of change and reform between World War I and World War II. With this Spanish-translated book, readers will learn about events such as the Harlem Renaissance, suffrage, the stock market crash on "Black Tuesday," and the Great Depression. Primary source documents and images, and other engaging features, aid students in understanding the social studies content.

This nonfiction Spanish-translated reader gives children an in-depth look at what a career as a police officer is like. Readers will learn about various aspects of life as a police officer--from being accepted into the academy to keeping streets safe. Readers will learn what a typical day in the police academy is like as well as a day in the field as an officer. Through helpful charts and diagrams and colorful images in conjunction with informational text and stunning facts, readers discover important aspects of keeping communities safe, including what's inside the patrol car, K-9 units,...