Agujeros negros (Black Holes)

For many years, people believed there were nine planets that orbited the sun. Now we say there are eight. What happened to the ninth planet, Pluto? What are the different planets like? What exactly makes a planet a planet? These are the many intriguing questions answered with this high-interest book, crafted to be accessible for readers of all levels. Young astronomers will be especially fascinated by the stunning photographs and the "Make the Grade" fact boxes.

A lovely historical novel set in fifteenth century Andalusia, with its maze of love and hints of humor.

Every day, living things grow and change. How do they do it? Find out by exploring the life cycles of various animals. This nonfiction Spanish book teaches students important scientific concepts and terminology. The diagrams, sidebars, text features, and colorful images will keep students connected to the text. Aligned to state and national standards, the fun lab activity provides a real-world learning experience that supports STEM instruction. Keep students reading with this fascinating Spanish book!

You've probably heard of lions and tigers. Perhaps you've seen them at the zoo. But have you heard of the clouded leopard? This shy member of the cat family is an endangered species. Their shyness makes studying them a challenge for zookeepers and scientists. Find out why they are so special, and why they need our help. 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...

Al Centro de Información y Documentación del Museo de Culturas Populares acudían personas de todas las edades -desde estudiantes de primaria a estudiantes de universidades- a fin de obtener datos acerca de la Navidad, Día de Muertos y Semana Santa, entre mucho más. La información existente no era mucha o incompleta y disgregada, lo que dificultaba la tarea de los estudiantes. Por lo tanto, me di cuenta de la necesidad de elaborar un libro que reuniera los orígenes y la simbología de las principales y más genralizadas fiestas tradicionales de nuestro país. Entonces puse manos a la...