Un día en... el Imperio Romano (Un día en...)

Although Earth is mostly made up of igneous and metamorphic rock, sedimentary rock covers about 75 percent of Earth's land surface. This means it's the most visible kind of rock on Earth. Sedimentary rocks form when sediment accumulates and compacts. Your readers will learn how sedimentary rocks form, the different types of sedimentary rocks, and how people use sedimentary rocks. Fun fact boxes provide readers with additional information. A helpful diagram illustrates how sedimentary rocks form.

«Mi vida no me interesa en absoluto», solía decir públicamente André Malraux (1901-1976). Pero, de hecho, sólo le interesaba su vida, que concebía como una obra y que quizá sea su mejor novela. Así es como la aborda Olivier Todd , que en esta biografía exhaustiva la recorre sin complacencia ni agresividad, pero con la intención de que ninguna de las preguntas que suscita Malraux , como novelista, intelectual, político y personaje público, quede sin respuesta. ¿Fue realmente desgraciada su infancia, que él decía odiar? ¿Llegó a ser un revolucionario? ¿En qué sentido?...

This magnificent book uses beautiful photography to help young children understand why some oceans are warm and some are cold, which kinds of plants and animals live in oceans, and how the bodies of ocean animals are built to help them glide through water. Children will be delighted by the images of seals, penguins, polar bears, dolphins, and more.

Uncover some of the most infamous disasters in the world including the Hindenburg, the sinking of the Titanic, the Dust Bowl, BP oil spill, the Hiroshima and Nagasaki atomic bombs, and the Chernobyl disaster in this shocking book. With its intriguing facts, vivid images, helpful graphs and maps, and informational text, this fascinating, Spanish-translated nonfiction title will keep readers informed, engaged, and interested from cover to cover.