Cosmos en 3D

Interesting facts and experiments explore the dynamics of a race car engine to teach about air flow and drag, safety equipment and roll cages, the fuel system and horsepower, suspension and track bars, internal combustion, why race cars don't have speedometers, how roof flaps are designed like airplane wings, and more.

Prepárate para conocer los datos más curiosos sobre ciencia, historia y naturaleza, y hazlo con mucho humor y todo el rigor de National Geographic. ¿Por qué necesito comer? ¿Por qué juegan los animales? ¿Por qué eran comunes las pirámides en el mundo antiguo? ¿Por qué las pelotas de fútbol americano no son redondas? En este libro, encontrarás más de 1 111 fascinantes respuestas a preguntas sobre cosas que todos los niños quieren saber. Desde el clásico «¿por qué el cielo es azul?» hasta cuestiones más insólitas, como «¿por qué es imposible cavar un hoyo que atraviese...

Book Features: • Ages 5-8, Grades K-2 • 24 pages, 8 inches x 8 inches • Simple, easy-to-read pages in Spanish with full-color pictures • Includes a glossary, index, and an engineering design activity • Supports NGSS Playful Learning: In Mi Biblioteca de Ingeniería: Diseño y Construcción para Jugar, kindergarten—second graders learn about the forces, energy, and designs that make up roller coasters, sports equipment, zip lines, and other things we love! Engineering Made Fun: Forces, energy, and motion are all a part of how we play. Young readers learn how engineers use science...

If you lived long ago, how different would life be from how it is today? Many things are different, but many things are the same! Introduce students to the concept of change as they compare homes, schools, jobs, technology, and transportation from the past and present. This primary source book uses dynamic primary source images and supportive text to integrate social studies content and language arts instruction. The accessible table of contents, glossary, and index work to aid students in better understanding the content. Aligned to state and national standards, this Spanish book will engage ...

Get a close-up look at animals in the zoo, from appearance to behavior to babies. This series uses vivid photos to compare life in the wild and life in captivity in terms of habitat, activity, and diet.