La resolución de problemas

Did you know that most animals in the world don't have backbones? Learn more about invertebrates in this engaging, Spanish-translated nonfiction book. Readers will learn all about mollusks, arthropods, arachnids, and crustaceans while being stimulated from cover to cover with its detailed images and charts, intriguing facts, and informative text.

Examines the apparent connection between birds and dinosaurs by comparing fossils, dinosaur bones, and modern birds.

Adems de ser uno de los mejores novelistas europeos, Ea de Queirs escribi, durante los aos en que ejerci de cnsul, algunas de las ms atractivas crnicas de la historia del periodismo. Ecos de Pars rene escritos que envi regularmente al peridico brasileo Gazeta de Notcias, donde tambin colaboraron Machado de Assis, Oliveira Martins y Ramalho Ortigao.

It's Ms. Frizzle's birthday and the class tries to bake a cake but winds up inside it, learning about mixtures and reactions that occur when ingredients are put together."