Agujeros negros (Black Holes)

For many years, people believed there were nine planets that orbited the sun. Now we say there are eight. What happened to the ninth planet, Pluto? What are the different planets like? What exactly makes a planet a planet? These are the many intriguing questions answered with this high-interest book, crafted to be accessible for readers of all levels. Young astronomers will be especially fascinated by the stunning photographs and the "Make the Grade" fact boxes.

¿Te has ganado ya el título de súper bromista? ¿Eres el genio indiscutible de las bromas? Si el primer libro de «Súper Bromas» te ayudó a hacerte un nombre entre tus amigos, con este segundo volumen te reafirmarás como el mejor bromista de todos los tiempos. ¿Pensabas que ya no quedaban víctimas? ¿Que tus bromas eran inmejorables? No te apures, aquí te traemos un montón de bromas nuevas ¿Estás a punto para gastar más bromas? Hemos recopilado las ideas más divertidas (y un poco locas) para que te conviertas en un ¡auténtico ninja de las bromas!

★“Fascinating...An appealing resource sure to spark an interest in biomimicry, from casual readers to budding scientists. Recommended for all libraries.”—School Library Journal, starred review Did you know that lamps can be powered by glowing bacteria instead of electricity? That gloves designed like gecko feet let people climb straight up glass walls? Or that kids are finding ways to make compostable plastic out of banana peels? Biomimicry, the scientific term for when we learn from and copy nature, is a revolutionary way to look to nature for answers to environmental problems such...

Have you ever wondered how the wind makes a kite fly? Learn about the wind with this Spanish STEAM book for English language learners that makes it easy for parents and teachers to introduce STEAM and beginner science topics to their youngest learners. Created in collaboration with Smithsonian, this book uses real-world examples to make STEAM topics easier to understand. It features an age-appropriate STEAM activity that is perfect for makerspaces and introduces kindergartners to the steps of the engineering design process. It helps beginning readers learn to read and is ideal for...

Introducción a la historia del masaje. Introducción al masaje deportivo. Normas y consejos para la aplicación de un masaje. Quirogimnasia. Conceptos anatómicos básicos para masajistas.