El ciclo del nitrógeno (The Nitrogen Cycle)

Soccer has been played for over 200 years in hundreds of countries across the globe. While it doesn't always get the same level of exposure that football or basketball enjoy in the United States, professional soccer is one of the world's most popular sports. Soccer has a number of living superstars who have changed the game forever with their talents and achievements. Readers will learn about Marta, often regarded as the greatest female soccer player of all time. The inspirational story of her life, trials, and journey to greatness is sure to turn young readers into soccer fanatics.

Presents pairs of photographs of similar items, including a hot dog and an ice cream cone, and the sun and the sea, to introduce the difference between hot and cold.

Un Jacobo adulto intercala reflexiones sobre su vida adolescente, sintiendo que de alguna manera traicionó a Violeta años atrás. Le prometió volver y nunca lo hizo. Es más, la olvidó por completo cuanto tanto le debía. Cuando sus padres se divorciaron, sintió el fracaso como propio y no pudo superar su derrota, por lo que decidió que no merecía la pena vivir. Tras un intento autolítico y pasar unos meses ingresado en el hospital, su médico le recomendó vivir una temporada en un lugar tranquilo: Caxaelecha, un pueblo del norte de España. Un día, buscando el sitio idóneo en los...

Learn how scientists channel energy from the sun to power awesome innovations! Created in collaboration with the Smithsonian Institution, this STEAM book will ignite a curiosity about STEAM topics through real-world examples. It features a hands-on STEAM challenge that is perfect for makerspaces and that guides students step-by-step through the engineering design process. Make STEAM career connections with career advice from actual Smithsonian employees working in STEAM fields. Perfect for English language learners, this Spanish book builds 1st grade students’ early literacy skills.