La Campana de la Libertad (The Liberty Bell)

Do you know why there are thirteen stripes and fifty stars on the American flag? Or how the American flag inspired Francis Scott Key to write "The Star Spangled Banner?" Find out the answers to these questions and more in The American Flag.

Traducción de M. López Salvá. Intr. y notas de M. López Salvá y M. a A. Medel. Rev. : R. M. a Aguilar.

Readers will set their eyes to the night sky in this fascinating book about astronomers. This volume is a perfect combination between STEM and career guidance as it introduces readers to the different ways astronomers use science, technology, engineering, and math in their work every day. Readers will love learning about celestial bodies and space phenomena, as well as the different processes and equipment astronomers use to observe, collect, and analyze data. This book also covers the steps a person can take to become an astronomer. The curriculum-based information in this book is conveyed...

"Viaja a las profundidades del océano en busca de las criaturas más grandes y fantásticas del planeta. En este libro bellamente ilustrado, encontrarás animales que han inspirado las leyendas de las serpients marinas y las sirenas. Mientras viajas por los mares, puedes ensamblar cinco criaturas marinas diferentes con las piezas intercambiables, o crear tus proprios monstruos sobrenaturales"--Container.

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.