Algoritmos: la base de la programación de computadoras (Algorithms: The Building Blocks of Computer Programming)

Describes where fossil fuels come from, their uses and forms, the harm they cause to the environment, and sources of renewable energy.

Many people depend on blue crabs from the Chesapeake Bay for their jobs. But overfishing and changes in the blue crabs' habitats have reduced their numbers. Learn how scientists have stepped in to study these blue beauties so that they can keep a healthy crab population. Created in collaboration with the Smithsonian Institution, this Smithsonian Informational Text builds students' reading skills while engaging their curiosity about STEAM topics through real-world examples. It features a hands-on STEAM challenge that guides students through every step of the engineering design process and is...

Dams change the landscape, providing reservoirs of freshwater and even producing electricity. Discover the engineering behind dams.

Acostarse, bañarse, dejar de utilizar el pañal o comer suelen ser actividades dificultosas para los niños y, a menudo, preocupan a los padres. Ahora, los mayores y los pequeños aprenderán a desarrollar actitudes positivas ante estas situaciones; los más pequeños lo pueden hacer a través de cuatro historias de niños que, como ellos, se resisten a crecer. Además, los cuentos incluyen valiosos consejos para facilitar la tarea de los padres.

Convi�rtete en un ingeniero experto y construye impresionantes obras de redstone con esta gu�a oficial de Minecraft. Aqu� aprender�s a usar los componentes de redstone, a montar circuitos funcionales y a levantar ingeniosas estructuras. Con informaci�n privilegiada por parte de los expertos de Mojang, �sta es la gu�a definitiva para las obras de ingenier�a de Minecraft. ENGLISH DESCRIPTION Learn the art of redstone and become a master engineer with Minecraft: Guide to Redstone, then put theory into practice to construct intricate contraptions in Minecraft. Pick up the basics...