Los estados de la materia — Los gases

La locura y el horror han obsesionado mi vida, escribe el autor. Los libros que he escrito no hablan de otra cosa. Después de El adversario, ya no aguantaba más. Quise escapar. Creí que escapaba amando a una mujer y realizando una investigación. La investigación fue sobre mi abuelo paterno, que tras una vida trágica desapareció en el otoño de 1944 y, muy probablemente, fue ejecutado por actos de colaboración con los alemanes. Es el secreto de mi madre, el fantasma que atormenta a nuestra familia. Para exorcizarlo seguí caminos azarosos, que me llevaron hasta una pequeña ciudad...

“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 horned dinosaurs face-to-face: Torosaurus had the biggest skull of any animal ever! Pentaceratops had five sharp horns on its head! Styracosaurus was as big as an ice cream truck! Plus, you'll get to know Centrosaurus,...

Life In America's First Settlements Was Dangerous. Wars Between Colonies, Native Tribes, Disease, And Food Shortages Made Survival A Challenge. Features Primary Sources, Historical Images, Chart, And Maps. Correlated To Common Core, Texas TEKS, Virginia Sols, And Georgia Performance Standards

Featuring TIME For Kids content, La gran bandera (Grand Old Flag) discusses the importance of the American flag. This wordless picture book teaches kindergarteners about America's symbol of freedom as they observe the pictures. Aligned to NGSS standards, this visually engaging book encourages students to describe what is happening using their own words.