Los estados de la materia — Los gases

Did you know that pigs are some of the smartest animals on Earth? Pigs keep themselves very clean. Discover more about these farm animals in My Pig.

Did you know that baby butterflies look like worms with legs? Caterpillars turn into butterflies inside a shell. Discover more about these flying insects in Butterflies, part of the Life Cycles series of EYEDISCOVER books.

Did you know that liquids take the shape of their containers? If liquids get hot, they can become gases. Discover more interesting facts in Liquids, part of the States of Matter series of EYEDISCOVER books.

La Química es una ciencia experimental. Trata de desentrañar los secretos de la materia en cuanto a su composición, propiedades y transformación. A lo largo de la historia, este estudio ha ido evolucionando desde la simple observación exterior hasta las sorprendentes teorías actuales sobre su naturaleza íntima. La Química actual es una ciencia básica para otras ciencias, constituye el fundamento de infinidad de análisis que se hacen en diagnósticos médicos, en criminología, en paleontología, etc., pero también es una ciencia que participa en la vida cotidiana (desde el aire que ...

"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 the film Jurassic Park. Take a trip through dinosaur time to meet these deadly dinosaurs face-to-face: The Variraptor had pointy teeth with grooves like steak knives to saw through meat! The Draeomaeosaurus was the first raptor ever discovered. It had a very large brain! The Microraptor was ...

This engaging volume takes a close look at the legend of Joaquin Murrieta, the man who came to be known as the Robin Hood of Eldorado. Dynamic text tells the story of Murrieta, with plenty of exciting age-appropriate details, but also examines the complex relationship between fact and fiction in legends such as his. Interesting and informative historical background on the California Gold Rush and the role of Mexicans and Californios in the area at the time round out this fun and informative volume.

La naturaleza no siempre es amable. Los desastres naturales como terremotos y tormentas pueden arrasar ciudades. Culturas enteras y sus historias corren el riesgo de perderse. ¡Cuando ocurre un desastre, los conservadores trabajan para guardar elementos culturales para preservar la cultura para el futuro! Creado en colaboración con la Institución Smithsonian, este libro en español despierta la curiosidad sobre los temas de STEAM a través de ejemplos del mundo real. Cuenta con un desafío STEAM práctico que guía a los estudiantes de inglés a través de cada paso del proceso de diseño...