Expansión de la nación (Expanding the Nation) 6-Pack

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. This 6-Pack includes six...

Jesús y Aurora Aroca nos introducen en el Museo del Prado para que a la vista de unas cuantas obras de arte, eso si, quizá las más atractivas para los niños y jóvenes, podamos acercarnos a esos mundos

A human hand is found in the zoo's elephant enclosure. The rest of the teacher and ardent environmentalist turns up on the lawn. Although admired by his students, nearly everyone else seems to have a reason to want him dead.

Los cangrejos ermitaños no tienen caparazón propio. Deben mudarse a caparazones más grandes a medida que crecen. Aprende estos y otros datos intrigantes en El cangrejo ermitaño, uno de los libros de Me encanta mi mascota. Hermit crabs do not have their own shells. They must move into bigger shells as their bodies grow. Learn these intriguing facts and more in Hermit Crab, an I Love My Pet book.