Un bosque para la mariposa monarca

¡Aprende con nosotros sobre los animales de América que están en peligro de extinción! ¿Sabías que los flamencos pueden alcanzar velocidades hasta de sesenta kilómetros por hora?¿Y que las colonias de flamencos tienen nodrizas que cuidan a los pequeños mientras sus padres están lejos? Los flamencos viven aproximadamente veinte años, y sea cual sea su edad, no les gusta estar solos. ¡Algunos científicos piensan que en Yucatán viven alrededor de veinte mil flamencos! Estos son solo algunos de los datos increíbles que encontrarás en este libro sobre criaturas en peligro de...

Recounts the life of Cuban violinist Claudio José Domingo Brindis de Salas, a black child who was born free and began his career as a musical prodigy to become a noted concert musician in Paris, while slavery still existed on the island.

Defender la Luz Mientras el mundo occidental caía en la oscuridad, ella se atrevió a defender la luz. Hipatia de Alejandría, nacida en el año 355, tras el reinado de Constantino, vivió en un Imperio Romano que se derrumbaba, un mundo en el que la obediencia a las autoridades religiosas triunfaba sobre la ciencia, en el que la razón y la lógica amenazaban el nuevo orden mundial. Era un mundo al borde de la Edad Media, un mundo que decidía la cuestión de la ciencia versus la religión, la libertad versus la ortodoxia, la tolerancia versus el odio. Durante más de 40 años, Hipatia se...

Many people depend on blue crabs from the Chesapeake Bay for their jobs. But overfishing and changes in the blue crabs' habitats have reduced their numbers. Learn how scientists have stepped in to study these blue beauties so that they can keep a healthy crab population. Created in collaboration with the Smithsonian Institution, this Smithsonian Informational Text builds students' reading skills while engaging their curiosity about STEAM topics through real-world examples. It features a hands-on STEAM challenge that guides students through every step of the engineering design process and is...

Anne Frank's diary has become one of the most widely read books in the world. Readers will learn about Anne as she went into hiding from the Nazi Party in this Spanish-translated nonfiction title. Through vibrant images, informational text, timelines, and a glossary of terms, readers will discover the hardships Anne and her family went through in order to avoid being sent to a concentration camp. This inspiring biography enables children to look up to Anne and find hope in every situation, just as she did.

From art and architecture to politics, philosophy, and mathematics, "western civilization" owes a great deal to the achievements of ancient Greece, but what do we really know about this long-gone civilization? How did geography influence the politics of the Greek city-states? What's the difference between an agora and an acropolis? This book takes readers several thousand years into the past, when independent city-states ruled the Mediterranean Sea, to find the answers. Full-color photographs and maps, accompanied by accessible text, introduce readers to the many contributions the ancient...