Agujeros negros (Black Holes)

For many years, people believed there were nine planets that orbited the sun. Now we say there are eight. What happened to the ninth planet, Pluto? What are the different planets like? What exactly makes a planet a planet? These are the many intriguing questions answered with this high-interest book, crafted to be accessible for readers of all levels. Young astronomers will be especially fascinated by the stunning photographs and the "Make the Grade" fact boxes.

The history of the feast! After their first harvest in 1621, the Pilgrims at Plymouth shared a three-day feast with their Native American neighbors. Of course, the Pilgrims and the Wampanoag didn't know it at the time, but they were making history, celebrating what would become a national holiday.

Nadar y leer son dos cosas muy difíciles de aprender. Da mucho miedo meterse en la piscina cuando no se hace pie o abrir un libro lleno de palabras incomprensibles. Óscar necesita ayuda para divertirse en el agua y para leer un libro de mayores, pero llegará un día en el que los brazos y las piernas se moverán al ritmo adecuado y las frases, por fin, tendrán sentido.

La abuela de Kerstin gana un premio estupendo: un crucero por el Caribe. A Kerstin le apetece mucho ir, pero no tiene billete. Sin embargo se las ingenia para colarse en el barco... ¿Qué peripecias esperan a este singular polizón? Una divertida novela en la que se refleja la importancia de la amistad y las relaciones interpersonales.

Discusses the origins of tomatoes, the many different kinds, their uses in Latin America, their spread throughout the world, and tomato festivals.