El ciclo del nitrógeno (The Nitrogen Cycle)

Three Puerto Rican stories include the title story, which represents the land's indigenous Tainos; the tale of la Guinea, which is rooted in the nation's African culture; and la Mula's tale, a story of Spanish origin.

At an early age, Steve fell in love with the possibility of the computer machine. He knew it had the power to change someone's life. Inspired to create a personal computer accessible for everyone, Steve went on to become one of the most influential inventors the world has ever met. This inspiring story of the visionary and entrepreneur features a facts and photos section at the back.

CHARLI D'AMELIO ES LA ESTRELLA DE TIKTOK. En este libro descubrirás sus secretos para que brilles siendo tú. ***El regalo perfecto para esta Navidad*** #1 en TikTok Más de 85 millones de followers Conocida en todo el mundo Pero ¿quién es realmente Charli D'Amelio detrás de las cámaras? Por primera vez, Charli está preparada para compartirlo TODO: qué significa para ella su familia, cómo le ha afectado la fama, quiénes son sus verdaderos amigos... ¡y cómo ha conseguido pasar de los haters! Descubre la historia de Charli, no te pierdas sus fotos top secret y aprende a brillar...

Computer science is all around us, at school, at home, and in the community. This book gives readers the essential tools they need to understand the computer science concept of algorithms and procedures. Brilliant color photographs and accessible text will engage readers and allow them to connect deeply with the concept. The computer science topic is paired with an age-appropriate curricular topic to deepen readers' learning experience and show how algorithms and procedures work in the real world. In this book, readers learn how to use instructions to build their own drone. This nonfiction...