Con la energía del Sol ebook

On a clear night, you should be able to see the stars. But we cannot always see them. Light pollution prevents us from seeing the stars and causes other problems as well. Learn about light pollution with this STEAM book that will ignite a curiosity about STEAM topics through real-world examples. Created in collaboration with the Smithsonian Institution, it 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 Smithsonian employees working in...

"Dino" Don Lessem brings readers face-to-face with various dinosaur species, detailing their habitats, way of life and how they became extinct. An acclaimed dinosaur expert, Don Lessem has written more than 30 children's books, writes a popular dinosaur column in Highlights magazine, and was an adviser for Jurassic Park. Take a trip through dinosaur time to meet these sea giants face-to-face: The Archelon was similar to a turtle, but its shell was made of crossed rib bone covered in rubbery skin! The Mososaurs had huge pointy jaws and grew to be fifty feet long! The Ichthyosaurs looked a lot...

Today is Mauro's Birthday. Everything is ready for the celebration; his friends have a lot of presents for him.

Técnico electricista 1 - Curso visual y práctico Fundamentos de electrotecnia Nos introduciremos en los contenidos fundamentales para ir construyendo los conocimientos que necesitamos para aproximarnos a los aspectos más complejos de la electricidad. Para comenzar este viaje, revisaremos en detalle los contenidos que compondrán este curso, conoceremos la estructura de la colección. Analizaremos el aspecto profesional de la electricidad en cuanto a la salida laboral y sus usos cotidianos, y conoceremos algunas tareas que puede desarrollar un técnico electricista para ampliar sus...

Dragonflies are large flying insects known for their brightly colored bodies and see-through wings. They are among the fastest insects in the world. Learn more about these amazing animals in Dragonflies, a Fascinating Insects book.