¿Rana o sapo? (Frog or Toad?)

Our closest solar system is about 10 light years away. It has two main types of planets. Some are rocky and small, like planet Earth, while others are huge balls of gas, like Jupiter. Learn about how astronomers once thought our solar system was the one and only, to how they have now discovered hundreds of stars with planets orbiting them, which means there could be billions of solar systems in outer space! Just maybe, these alien worlds could host life, like our own amazing planet. This book allows students to use observations of the Sun, moon, and stars to describe patterns that can be...

¿Una época, un periodo, sólo un momento? Ramírez analiza el arte que en estos años y bajo esta advocación se ha producido y/o difundido- la apoteosis Duchamp, las máquinas de Tinguely, los graffiti, el cine y la ciudad, la arquitectura postmoderna...-, sus problemas.

SHAAAARRRKK! That's probably the last word anyone wants to hear while swimming in the warm blue sea. But most sharks aren't at all what people expect. In fact, those who think all sharks are giant, man-eating killers are in for a surprise. The compelling narrative, colorful illustrations, and captivating facts in SURPRISING SHARKS reveal that sharks come in all shapes and sizes - and probably should be more afraid of humans than we are of them. Back matter includes a note about sharks and an index.

If you ask people to name an amazing musical composer, chances are Beethoven's name will come up. Widely thought to be the greatest composer in history, Beethoven's work influenced music around the world. This exciting volume teaches readers the fascinating story behind his life, and includes colorful images and engaging text to capture and hold their attention. This high-interest biography is sure to encourage an interest in both music and history, making for an excellent addition to any library.