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.

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.

How do architects and contractors use math and geometry to help build a house? Readers will find out in this engaging, Spanish-translated nonfiction book that features bright images and charts, informational text, and intriguing facts that will familiarize children with construction, construction equipment and materials, and blueprints. This 6-Pack includes six copies of this title and a lesson plan.

Learn how technology has improved lighthouses over time with this book that features a hands-on STEAM challenge and uses real-world examples to give insight into how the engineering design process is used to solve problems.

An award-winning first glimpse into the diverse natural world of mammals. This addition to the acclaimed About... series explains to children in simple, easy-to-understand language what mammals are, what they eat, and where they live. Beautifully detailed, realistic paintings by wildlife illustrator John Sill introduce readers to the huge variety of mammals, from the tiny white-footed deermouse to the large American bison. An afterword provides more details about the animals featured in the book. Parents and pre-school and primary-grade teachers will find this an attractive choice for...

Susi tiene un diario, y en él escribe todas las cosas que le van sucediendo cada día. Paul también tiene un diario en el que escribe lo que le sucede. ¿Coincidirán los puntos de vista de los niños sobre los mismos acontecimientos? Una historia sobre la amistad y el devenir de la vida.

Aunque los estudios de Bachillerato completan, en sí mismos, una etapa de formación, es indudable que en la mayoría de los casos son paso necesario hacia otros estudios de rango universitario. Este libro ha sido diseñado para abarcar esa doble finalidad. Por una parte busca ser un complemento de lo explicado en el libro de texto o en la clase; desea, por otra, ser una ayuda en ese tránsito intermedio entre el Bachillerato y los primeros cursos de Facultades y Escuelas Universitarias.