¿Por qué celebramos el Día de Martin Luther King Jr.? (Why Do We Celebrate Martin Luther King Jr. Day?)

A Rube Goldberg machine is designed to perform a simple task through a series of elaborate steps. These simple machines are named after Reuben “Rube” Goldberg, an American cartoonist, engineer, and inventor. Learn how these fun machines work and ignite a curiosity about STEAM topics! Created in collaboration with the Smithsonian Institution, this informational text features a hands-on STEAM challenge that is perfect for makerspaces. Make STEAM career connections with career advice from Smithsonian employees working in STEAM fields. Perfect for school reports and projects, this Spanish...

Discover how the butterflies colors are made up of, how they eat, and how they become the beautiful insect you see today

Una historia adorable para ayudar a los niños a reconocer y desarrollar sus talentos únicos y mantener su autoestima.Paco el Perezoso no es bueno en los deportes como algunos de los otros animales. Es demasiado lento. Pero Sloan sabe que está bien.En lugar de desanimarse, Paco se centra en lo que es bueno y se esfuerza para lograr su objetivo. ¡Únete a Paco el Perezoso para ver qué cosas asombrosas pueden pasar cuando te lo propones y crees en ti mismo!Para niños de 3 a 8 años, preescolar a segundo grado.Para todos los que no encajan? ¡Nacieron para brillar! Son únicos con talentos...

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.