En el trabajo: Paseadores de perros: Datos 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...

"Simple text and color photographs describe the units and tools used to measure time--in both English and Spanish"--

Rudy can't find his favorite sweater. He's looked everywhere: inside the house, outside, and in the apartments upstairs and downstairs. In the kitchen, in the bathroom, here, there . . . where could it be? This enchanting story has flaps, pages with cutouts, and numbers to count.

“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 small dinosaurs face-to-face: Little Lesothosaurus was the length of a house cat! Epidendrosaurus could climb into trees like a squirrel! Liaoceratops had body armor and horns-and was only the size of a collie dog! Plus,...

Torres, peones y caballos ¡a la carga!. No dejen que nos capturen a nadie; su deber es protegerme. Tú, mi reina, quédate aquí conmigo, que todos nos van a cuidar, ¡Alfil! Dime qué ves, aconséjame cuál pieza mover. Y tú, lector ¿te atreves a retarme? El rey. ¿Has oído hablar del ajedrez? ¿Conoces el tablero, sus piezas y la manera en que se mueven? Rooks, pawns, and cavalry... charge! Do not allow a single piece to be taken captive. You, my queen, must stay beside me. They are all here to protect us! Bishop, tell me what you see? What piece should I move? Reader, do you accept...