Viaje a través de la Vía Láctea (A Trip Through the Milky Way)

The idea of the Roaring '20s conjures up images of speakeasies, women with short, saucy hairdos, and hot jazz. Readers will learn about the historical events that define this decade, including the devastating war that preceded it. An explanation about project-based learning will help readers understand how it can help them research their topic in unique and interesting ways. Constructive suggestions offer ideas for projects, while encouraging readers to take their studies in new and interesting directions.

The need for speed is the motivating factor in this engaging, Spanish book. Readers learn the history of travel from the very slow to the supersonic and beyond, including everything in between. They learn and discover the factors that influence motion for all types of vehicles: land, air, and water alike. They also learn different ways to measure speed and read about energy uses for different vehicles. With greater speed comes greater risk. Readers learn how engineers are always seeking new and better ways to keep people safe as they travel faster and go farther.

The US president is the face of the United States to the rest of the world. However, he or she doesn’t have unlimited power within the country. The president has certain powers given by the Constitution, including the ability to make treaties, appoint some important government officials, and veto laws. Readers learn the many duties of the president in simple, clear language appropriate for both younger readers and older readers looking for a succinct review of the topic. Fact boxes supplement the main content with important details about checks and balances, amendments, and more that affect...

Simple text and photographs introduce why people have homes and some of the different kinds of homes found around the world.

Científico, pintor, médico y naturalista, las "Cartas sobre la pintura de paisaje" de Carus desbordan los límites de una canónica artística al uso y nos sitúan en el centro de la concepción románica de la naturaleza. No sólo porque exponen con precisión -no exenta de los recursos retóricos de época- las ideas centrales del paisajismo romántico de la primera mitad del siglo XVIII, también porque establecen con nitidez la relación entre arte, estética y ciencia, y , en todos los casos, la relación del hombre con la naturaleza. En palabras de Carus: =por ellas y mediante ellas...