Robotland

The rock cycle has been taking place for millions of years. However, geologists have only known about this phenomenon for about 300 years. Young terrestrial explorers are introduced to different types of rocks, where in the cycle these rocks fit, and where in Earth's layers each step takes place. Fact boxes provide readers with fun additional information. A diagram helps readers make sense of the new information they're learning.

A New York Times best-seller and winner of the ABBY Award features lavish illustrations of Native American settings and shares Chief Seattle's environmental message for "helping preserve what is being lost."

Readers may never expect that they might free fall to Earth, but if they have ever dived into a pool, that's exactly what they've done. This Spanish-translated book shows readers how Newton's three laws of motion affect divers, skydivers, and mountain climbers' movements. Readers discover who uses gravity, who works against it, and all other forces that contribute to a successful dive or climb. After reading this Spanish-translated book, readers can decide if they will ever be interested in engaging in one of these extreme sports.

Yo soy sólo entre colillas, soy la cecina del poema en el que no creo, soy la cecina del verso y del poema, soy el que vive sin tener ya sentido.