Experimentos sencillos con sólidos y líquidos

Tres inquietos de la Italia del siglo XV Piero Migliacci, Francesco y Selena- emprenderán, sin pretenderlo, la aventura más apasionante de su vida gracias a que conocerán a un misterioso y extraño ser: el viejo Hermes. El anciano maestro llegará de manera imprevista hasta la bella ciudad de Florencia lugar donde se desenvolverá la trama-, y a pesar de no gozar de muy buena fama entre sus vecinos, el octogenario “visitante” sabrá conquistar la amistad de los jóvenes amigos llegando hasta lo más profundo de sus corazones y sometiéndolos a una suerte de pruebas que habrán de ser...

The ruthless explorer Cortés devastated an entire people in his search for fame and gold for himself and for his country. Witness the conquering of the Aztec Empire during the Age of Discovery.

Describes the U.S. Navy, including their vehicles such as jets, aircraft carriers, and submarines, their weapons, and some of the different jobs that members perform in the Navy. Written in English and Spanish.

If you look close enough, a butterfly can grow up right before your eyes. Through the use of accessible text, readers take an exciting look at the journey butterflies make. A picture glossary helps beginning readers strengthen their vocabulary skills, and vibrant, full-color photographs show caterpillars grow to adulthood, taking flight to travel around the world.