Mamá y pediatra

A look at animal and human cells, and the internal structures that allow them to obtain energy, get rid of wastes, grow, and reproduce"

What do solar panels, waterproof clothing, and window coverings have in common? They are technologies that have been adapted based on studying butterflies! Learn what scientists have learned from butterflies with this Spanish book that will ignite a curiosity about STEAM topics through real-world examples. Created in collaboration with the Smithsonian Institution, this STEAM book features a hands-on STEAM challenge that is perfect for makerspaces and that guides students step-by-step through the engineering design process. Make STEAM career connections with career advice from actual...

Existen numerosos y muy diversos cuadernos de viaje, creados tanto por científicos en expedición como por pintores o acuarelistas en travesía. Íntimas y personales, las obras son un testimonio espontáneo y emotivo de las pequeñas y grandes aventuras que contienen, y abren nuevos horizontes a quienes las leen o las contemplan. Este género artístico no nació ayer. Ya de antiguo, algunos autores completamente desconocidos han creado cuadernos de viaje excepcionales, de la misma forma que otros artistas imposibles de olvidar, como Alberto Durero, William Turner, Eugène Delacroix, Paul...

What has a head, two tails, and shoots across the sky? A comet. Coming from the far edges of the solar system, most comets travel around the Sun, while meteors appear as flashing streaks of light in the night sky. Explore these amazing celestial wonders as they zip through space! This book looks at the difference between comets and meteors and their effects on Earth. The physical characteristics of each are identified in detail. This book won’t come crashing down! It’s filled with fun facts that give additional information on this exciting science topic. This book allows students to use...