La antigua Roma (Ancient Rome)

Wind Power: A waving flag, blowing leaves, a kite soaring through the skyall are moved by wind power. Wind is also our fast-growing source of energy. Find out how wind forms and the different ways we may use it in the future.

Simple text and pictures introduce facts about snowplows and tells what they are used for and why they are important.

This work contains a review of Patrick Hamilton's artistic career. Driven by a desire to move painting onto another plane, he has created a body of work along object- and concept-based lines with a foundation in his interest towards cultural, historical and literary research.

Readers find out what it's like for astronauts to eat, sleep, and work on a manned space flight in this adventurous, Spanish-translated nonfiction title. Children will discover what it's like to be weightless in zero gravity, how Mission control helps keep astronauts safe, and what astronauts do during their free time through vivid photographs, interesting, informative text, and stimulating facts.

Ser cortés, tener buenos modales, y mostrar bondad a los demás es el tema de este libro. Da a diferentes situaciones y circunstancias en las que la cortesía es importante.