Los sólidos (Solids)

Readers won't have to disassemble their favorite toys to discover what makes them work. This book explores electric, magnetic, and motion-powered toys from design to function. It introduces readers to the six simple machines and explains how they use force and motion to do work. Not every toy is a technological marvel. Readers learn about time-honored favorites including the rocking horse, Slinky, and rattles.

Learn how a designer's sketch becomes the fashion we wear and how a designer uses math and geometry to make their designs successful in this fashion-filled book! Including information about the fashion industry, clothing fabrics, patterns, and textures, readers learn all about the different aspects of the fashion industry. With a glossary, index, vivid images, informational text, and interesting facts, this Spanish-translated nonfiction book with engage students from beginning to end.

Readers may never expect that they might free fall to Earth, but if they have ever dived into a pool, that's exactly what they've done. This book shows readers how Newton's three laws of motion affect divers, skydivers, and mountain climbers' movements. Readers discover who uses gravity, and who works against it, and all other forces that contribute to a successful dive or climb. After reading this book, readers can decide if they will ever be interested in engaging in one of these extreme sports.

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.

Using helpful maps, charts, and intriguing facts in conjunction with vibrant images and informational text, this fact-filled, Spanish-translated nonfiction title allows early elementary readers to explore the lush rainforests of the world. Readers will learn make their way from the forest floor to the understory, all the way to the canopy!

Las composiciones de Beethoven expresan siempre fuerza y diversidad, por eso resulta complejo resumir su originalidad y personalidad. Beethoven supo plasmar en su música los momentos más notables de su vida, los sentimientos de alegría, de sufrimiento o de amor. La confluencia de los ideales revolucionarios de la época con el carácter, apasionado y profundo, del artista desempeñó sin duda un papel fundamental en la revolución musical que representó su obra.

Discover what it takes to be an Emergency Room doctor in this enlightening, Spanish-translated nonfiction title. Readers learn about the hard work and dedication it takes to have a career as an ER doctor and what a typical day is like in the emergency room. From medical school to residency, medical symptoms to diagnosis, children will learn all about the steps it takes to get involved in this profession. This engaging title features vivid photos, helpful charts and diagrams, informational text, a glossary of terms, and an interview with a real-life ER doctor to delight, inform, and encourage...

En la actual provincia argentina de Mendoza, en América del Sur, hace miles de años había mujeres y hombres luchando por sobrevivir. El rigor de la Era del Hielo, el peligro constante representado por fieras gigantescas y catástrofes naturales devastadoras, sumergieron a esos seres humanos en el terror, la superstición y la mayor brutalidad hacia los más débiles. Esta es la historia de Ulka, una joven que aprenderá a vivir y luchar por ideales que algún día serán los de toda la Humanidad: la libertad y el respeto por la vida en todas sus manifestaciones. En sus aventuras por esas...