Los sólidos (Solids)

Readers will be amazed to discover that every time they climb onto bicycles and ride like the wind, they are defying gravity! This book explains the physics and history behind bicycles, skateboards, and surfboards. Readers learn what happens from the simplest movement of rolling forward to more complex tricks and stunts of jumping and spinning. Readers will never look at bikes, skateboards or surfboards the same way again.

The need for speed is the motivating factor in this engaging, Spanish book. Readers learn the history of travel from the very slow to the supersonic and beyond, including everything in between. They learn and discover the factors that influence motion for all types of vehicles: land, air, and water alike. They also learn different ways to measure speed and read about energy uses for different vehicles. With greater speed comes greater risk. Readers learn how engineers are always seeking new and better ways to keep people safe as they travel faster and go farther.

Learn the secrets to artful cupcakes, oven-fresh bread, and other delicious baked goods in this delightful nonfiction title. Readers will learn how mathematics helps bakers measure their ingredients to make tasteful treats. Featuring vibrant images and charts, informative text, and fun, intriguing facts, this Spanish-translated nonfiction book will leave children fascinated by all the details that go into baking their favorite treats--like doughnuts and cookies!

Read Along or Enhanced eBook: Mysterious events occur all over the world. It rains fish every year in Honduras, rocks in Pennsylvania make music, and large drawings can be found on the desert floors in Peru! In this Spanish-translated nonfiction book, readers will learn about these strange phenomena and more curiosities like ESP and crop circles in this baffling and fascinating nonfiction title. Vibrant images and intriguing facts in conjunction with a glossary of terms, informational text, and an index keep readers captivated from cover to cover!

Gracias a este libro y a sus instrucciones ilustradas paso a paso, aprenderás los conceptos básicos de la manipulación del redstone para crear circuitos y fabricar espectaculares mecanismos y artefactos, como puertas automáticas, pistones, interruptores, hornos, trampillas secretas, cañones de TNT, granjas automáticas y muchos más. ¡Repleto de consejos de expertos, todo tipo de trucos prácticos y más de un centenar de pantallazos!

"No a todos nos toma el mismo tiempo estar listos para algo. Cuando Eduardo va al colegio, todavía no está listo para unirse a sus compañeros"--Page 4 of cover.

With simple examples that are easy to relate to, this basic review of some of the building blocks of economics will help readers easily grasp the concepts. With language that is conversational without being too casual, readers are engaged throughout as they learn about not only these basic concepts but how they fit into the whole economic scheme of things, such as where goods come from. Readers will learn about the three factors of production, as well as what happens when resources are lacking and how that influences the entire economy.

Cuando se trata de cartografiar la Vía Láctea, los científicos saben una cosa con certeza. ¡Saben que todavía hay muchas cosas que no saben! Descubra cómo estudian la Vía Láctea y aprenda sobre la galaxia que llamamos hogar. Creado en colaboración con la Institución Smithsonian, este Texto Informativo del Smithsonian desarrolla las habilidades de lectura de los estudiantes mientras despierta su curiosidad sobre temas de STEAM a través de ejemplos del mundo real. Presenta un desafío STEAM práctico que guía a los estudiantes a través de cada paso del proceso de diseño de...