Los ciclos de vida de los peces (Fish Life Cycles)

Many insects hatch from eggs and molt several times as they grow bigger. Others, such as butterflies, undergo a complete metamorphosis. A common science curriculum topic, insect life cycles may be confusing because of these differences. However, this book breaks down these cycles into easy-to-understand steps in both accessible language and colorful diagrams readers can turn to for review again and again. The most important vocabulary needed to talk about insect life cycles is further explained in fact boxes and an extended glossary.

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.

Los tiburones son criaturas increíbles que nosotros los humanos recién comenzamos a comprender. Este libro, con fotografías de cientos de tiburones y la información más reciente, animará a todos a hacer algo por estos animales en peligro de extinción.

Find out how tools have helped people hunt, build, and make life easier in this engaging, Spanish-translated nonfiction title. With colorful images, timelines, charts, a glossary to assist with vocabulary improvement, and an index, children will learn how tools throughout time have made such an important impact on life as we know it! Featured eras include the Stone Age and the Industrial Revolution.

Ogbi Ugbu ha venido de África. En una patera. Tan sólo tiene diez años y ya ha recorrido su país escondido en la noche. Ha sentido el cansancio, el miedo y el hambre. Y la tristeza. Pero en España ha hecho muchos amigos y es muy feliz. Quizás cuando se reúna con toda su familia, lo será del todo.