Agujeros negros (Black Holes)

For many years, people believed there were nine planets that orbited the sun. Now we say there are eight. What happened to the ninth planet, Pluto? What are the different planets like? What exactly makes a planet a planet? These are the many intriguing questions answered with this high-interest book, crafted to be accessible for readers of all levels. Young astronomers will be especially fascinated by the stunning photographs and the "Make the Grade" fact boxes.

"A kindergarten-level introduction to polar bears, covering their growth process, behaviors, the habitats they call home."--

Susana, una niña española que padece anorexia, se traslada una temporada al campo con sus abuelos; allí conoce a Nicoleta, una niña rumana cuyos padres han llegado aquí en busca de trabajo. Dos maneras de ver el mundo y de afrontar la realidad totalmente diferentes que, lejos de provocar enfrentamientos, llegan a entenderse y a ayudarse. En esta ocasión, nuestra joven autora nos ha planteado una situación real como la vida misma que ha tratado con una humanidad y una delicadeza especiales; la amistad y la confianza en los demás se ganan paso poco a poco para solucionar los problemas a ...

Know Your NumbersFind the hidden numbers in these exciting counting books. Count by ones, twos, fives, and tens!

Explore our solar system and Earth's place in it as readers flip through the pages of this Spanish-translated nonfiction title. Featuring vibrant images in conjunction with accessible charts and diagrams, readers will be fascinated from cover to cover!