Conservación de la masa (Conservation of Mass)

Light can travel faster than anything else in the universe. But what exactly is light, and where does it come from? This nonfiction Spanish book teaches students all about light, and introduces them to important scientific concepts and vocabulary terms like infrared, ultraviolet, photos, and visible spectrum. The intriguing images, detailed diagrams, and stimulating sidebars will keep students connected to the text. The fun lab activity provides a real-world learning experience that supports STEM instruction. Aligned to state and national standards, the leveled text supports differentiation....

Un libro interactivo que revela cómo eran los primeros seres humanos. ¡Levanta las solapas, haz girar las ruedas y abre las ventanas de sus páginas si quieres descubrir una visión muy animada de la vida cotidiana de nuestros lejanísimos tatarabuelos!

Deforestation, hunting and global warming have endangered countless species. The orangutan, okapi, giant panda and the blue whale are just some of the 30 species on the brink of extinction that are featured in this book. They need your help. The International Conservation Society illustrates how many of these species are left in the wild, and the latest status regarding their natural environment. You'll learn how you can aid endangered species and help sustain the ecosystems that give them life.

A step-by-step visual guide to building your own computer games using Scratch 3.0 Scratch 3.0 has landed, so stay ahead of the curve with this fully updated guide for beginner coders. Kids will love the step-by-step, visual approach that makes even the most difficult coding concepts fun and easy to understand. Coding Games in Scratch, 2nd Edition, blends coding theory with the practical task of creating exciting games. Children learn the fundamentals of computer programming by seeing how to build their own games. Coding theory is taught through practical tasks, so young programmers don't just ...

LA BIBLIA MAS ESPERADA POR LOS CHICOS DE HOY! Aqui esta la historia mas apasionante de todos los tiempos. En el lenguaje mas facil y aceptado hoy dia por adultos y ninos, la NUEVA VERSION INTERNACIONAL, la Biblia Palabritas de Vida llega repleta de apasionante aventura, sabiduria y color para introducir a chicos y grandes en el transcurrir de la historia de amor y de accion mas grande de todos los tiempos: La relacion de Dios con su mas hermosa y preciada creacion, el hombre . Contiene 132"