Cómo funcionan los ecosistemas

Photographs of nature in all its splendor and children's faces from around the world are paired with a poetic tribute to the Earth's colors, climates, and seasons.

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.

Anyone can learn computer science, even at the elementary school level. This book delves into computer science careers using age-appropriate language and colorful illustrations. A meaningful storyline is paired with an accessible curricular topic to engage and excite readers. This book introduces readers to a relatable character and familiar situation, which demonstrates computer science careers in everyday life. Readers will follow a narrator that makes an app with some help from their friends. This fiction book is paired with the nonfiction book Web Developers at Work (ISBN: 9781508137757). ...

¡Resuelve todos los PORQUÉS con la Enciclopedia Britannica! ¿POR QUÉ explotan las palomitas? ¿POR QUÉ los perros se huelen el culo los unos a los otros? ¿POR QUÉ tenemos hipo? ¿POR QUÉ pican los mosquitos? Abre este libro para responder estas preguntas... ¡y muchas más! Repleto de datos curiosos, historias sorprendentes y misterios sin resolver sobre el mundo que nos rodea, este libro es el mapa para la emocionante aventura que comienza preguntándose ¿POR QUÉ?