La Biblia en accion / The Bible in Action

What causes sound? How does sound travel? Sound begins when matter vibrates. Without this vibration sound could not move and nothing would make any noise. Starting with tiny molecules, this book explains the main concepts of sound and furthers understanding through a series of easy-to-do experiments that will appeal to readers of all ages.

Pobre corazón reúne nueve relatos cuyo nexo de unión es el amor, o los sucedáneos del amor. Nacemos para amar, dicen los románticos, o amamos para perpetuar la especie, replican los científicos. En cualquier caso el amor aparece en nuestra vida iluminándola o ensombreciéndola, dándole a veces un sentido, obsesionando siempre su conciencia y trastornando su voluntad: amor conyugal o adúltero, infantil o senil, ocasional o permanente, real o imaginado, ansiado, desdeñado, gozado, sufrido, pero cada uno de ellos con vocación de amor verdadero.

Computer science is all around us, at school, at home, and in the community. This book gives readers the essential tools they need to understand the computer science concept of algorithms and procedures. Brilliant color photographs and accessible text will engage readers and allow them to connect deeply with the concept. The computer science topic is paired with an age-appropriate curricular topic to deepen readers' learning experience and show how algorithms and procedures work in the real world. In this book, readers will learn how flowcharts can be used to teach people how to complete a...

A stinky look at the history of personal hygiene reveals fascinating facts, such as the invention of the toilet, how many times Queen Elizabeth I had a bath, how the first sewers were built, and much more.