Barcelona XXI siglos

The need for speed is the motivating factor in this engaging, Spanish book. Readers learn the history of travel from the very slow to the supersonic and beyond, including everything in between. They learn and discover the factors that influence motion for all types of vehicles: land, air, and water alike. They also learn different ways to measure speed and read about energy uses for different vehicles. With greater speed comes greater risk. Readers learn how engineers are always seeking new and better ways to keep people safe as they travel faster and go farther. This 6-Pack includes six...

¿Cómo un virus tan pequeño y frágil ha logrado cambiar el mundo? Coronavirus, el libro ilustrado que explica a los niños todo lo que deben saber sobre la covid-19. Escrita por el científico Ben Martynoga. ¿De dónde viene? ¿Cómo se propaga? ¿Podemos vencerlo? El coronavirus es 15.000 veces más pequeño que una pulga y podemos matarlo con una pastilla de jabón. ¿Cómo un virus pequeño y frágil cambió el mundo? Sumérgete en el fascinante mundo de los virus junto al científico Ben Martynoga y descubrirás cosas divertidas y a la vez aterradoras de la pandemia que ha cambiado el ...

Practice division while searching through the items in an old attic! This charming title, that has been translated into Spanish, follows the story of four children whose grandparents are moving out of their old house. The attic has old photos, comic books, baseball cards, and paper dolls just waiting to be discovered, but everyone needs to get a fair turn! Divide four boxes to open amongst four children! This book challenges young readers to practice their division skills by dividing up all sorts of collections found in this attic. Not only will they improve their division and STEM skills,...

Follows the life and career of the French scientist who proved the existence of germs and their connection with diseases.