Lewis y Clark y la compra de la Luisiana (Lewis and Clark and Exploring the Louisiana Purchase)

Discusses the various features of Australia, including its climate, mountains, rivers, lakes, animals, vegetation, coral reefs, flightless birds, population, and cities, and history of the Aborigines.

Have you ever flown on an airplane? In this title, early readers learn how an airplane works and what to expect if you fly on one. Included are a picture glossary and websites to visit.

Simple text and photographs show how common shapes can be put together to create new and different ones.

Rubén tiene problemas en casa y en el instituto. Su hermano está enganchado a las drogas y eso complica la vida familiar. Por otra parte, los matones del instituto van a por él y a por su amigo Wilson, al que Rubén ayuda y quiere defender de las agresiones racistas.