Vienen mal dadas

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.

November 1940. A circus parade walks through the streets of Warsaw, waving a flag and singing. They are 160 Jewish children, forced by the Nazis to leave their beloved orphanage. It's a sad occasion, but led by Doctor Korczak, their inspirational director, the children are defiantly joyful. Their new home is in the ghetto, a prison for Jews. Two years later they board the train that will carry them away to the death camps. Offered his freedom, Doctor Korczak refuses to abandon the children and proudly joins them on their last journey. This profoundly moving illustrated book is based on the...

Follow a day in the life of two children from different cities! This entertaining title has been translated into Spanish and encourages young readers to practice time measurement skills and early STEM themes, like reading analog and digital clocks. Familiar images and fun practice problems will have young readers thinking about how they can measure time throughout a day in their own lives!

Relatos de un hombre solo, de Michael Sixto, es un libro que, como una cámara cercana, sobrevuela y retrata la existencia de hombres y mujeres atados por lazos comunes como la frustración, la rutina, el aburrimiento y, por supuesto, la soledad. Algunos tratan de encontrar la salida a este entorno hostil,otros rompen drásticamente con el camino que parece preestablecido por la sociedad, y hay quienes también tienen en la rutina el arma más poderosa para hacer frente a los acontecimientos del día a día, pero como, al fin y al cabo, este es un libro sobre la existencia, hay también...