El clima y el tiempo

A STEM-focused addition to the #1 New York Times bestselling She Persisted series! Now available in Spanish! A lo largo de la historia, a las mujeres les han dicho que la ciencia no es para ellas porque no son suficientemente inteligentes, o porque sus cerebros simplemente no son capaces de ese tipo de estudio. En este libro, Chelsea Clinton nos presenta a varias mujeres científicas que no prestaron atención a los que les dijeron que no y optaron por utilizar su ingenio, sus habilidades y su persistencia para descubrir, inventar, crear y explicar. Ella persistió en la ciencia es un libro...

One dog in a teacup, two caterpillars on a leaf, three horses having a conversation... Fun photographs and simple text help introduce young readers to counting numbers from zero to ten. A fish-counting activity encourages young readers to practice their counting skills.

Each title in an educational series features one letter per page with ample writing space for practice, teaching youngsters how to write each letter of the alphabet in upper case, lower case, and in cursive.

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