Princesas que cambiaron el cuento

As a land that’s constantly in flux, Earth sometimes reveals clues about the plants, animals, and other organisms that lived long ago. Fossils teach us much about what life was like millions of years ago, answering the questions of how Earth changed and maybe even why it changed. This essential Earth science topic is thoroughly explained through manageable text, fact boxes, informational charts and diagrams, and a glossary and index. Readers will become young Earth detectives by the time they’re through with this text!

A scientific look at the natural processes that create waterfalls, and where they are likely to form.

Filled with tricks and treats, fun and food, Halloween is a day that children look forward to. At one time two separate festivals, the traditions of each gradually blended into the holiday we now celebrate on October 31.

Para Heinrich von Kleist (1777-1811) una novela consistía en la narración de un «acontecimiento inaudito», según la definición de Goethe. Sus personajes son héroes hamletianos sometidos a los imponderables del destino, enfrentados a situaciones límite que les plantean retos existenciales que surgen del caos. El presente volumen reúne toda la obra narrativa de Kleist: dos novelas cortas: Michael Kohlhaas y