"Los invisibles"

With its accessible question-and-answer format, this dynamic reference answers many questions posed by children and helps parents find the right way to explain a variety of complex concepts. Con su formato acesible de preguntas y respuestas, esta referencia dinámica contesta muchas preguntas que tienen los niños y ayuda a los padres a encontrar la manera apropiada de explicar una variedad de conceptos complejos.

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 book shows readers how Newton's three laws of motion affect divers, skydivers, and mountain climbers' movements. Readers discover who uses gravity, and who works against it, and all other forces that contribute to a successful dive or climb. After reading this book, readers can decide if they will ever be interested in engaging in one of these extreme sports.

El pirata Garrapata no descansa nunca. Ahora debe ayudar a Koskorrón, el emperador de Japón, que necesita urgentemente su ayuda. ¿Llegarán a tiempo para salvarle?¿Dónde está Floripondia? Otra divertida historia de un singular bucanero que destaca por su espíritu justiciero y solidario.

What does this Spanish-translated book, a table, and your big toe have in common? They are all solids! A solid keeps its shape and always has the same volume. Read this Spanish-translated book to learn about solids and how they are different from liquids and gases.