La optimización mecánica en el medio acuático

¿Sabías que los insectos palo se llaman ninfas cuando son jóvenes? Las ninfas cambian la piel cuando crecen. Aprende más datos fascinantes en Los insectos palo, uno de los libros de Insectos Fascinantes. Did you know that stick insects are called nymphs when they are young? Nymphs shed their skin as they grow. Learn more fascinating facts in Stick Insects, a Fascinating Insects book.

María José grieves at the loss of her mother who died in childbirth. She has difficulty sharing her feelings with her father and the distance between them grows with the appearance of a new woman. Her father gets another job which forces them to move to another neighborhood. The new house is small, but is near an ice cream store owned by Mr. Beto. In the store, María José makes friends with girls and boys her own age, but also meets Mr. Beto and his friends. María José and her friends try to help Mr. Beto when he comes down with a sudden illness.

Un paseo por Barcelona, tomando como eje conductor sus restos históricos. Este libro es la revisión actualizada de una obra que, con el título de Barcelona XXI siglos ̧ se convirtió en un gran éxito a comienzos de los noventa. Ahora se reedita con imágenes actualizadas y un reportaje sobre la Barcelona actual (Forum, etc.) a cargo de Pepe Navarro.

How much life can one cubic foot hold? Read how photographer David Liittschwager and zoologist Chris Meyer studied life in one cubic foot, and how their findings can teach us about life on the entire planet. Created in collaboration with the Smithsonian Institution, this Spanish Informational Text builds reading skills while engaging students' curiosity about STEAM topics through real-world examples. Packed with factoids and informative sidebars, it features a hands-on STEAM challenge that is perfect for use in a makerspace and teaches students every step of the engineering design process....