La Tierra y la luna (Earth and Moon)

Twirling tornadoes, horrific hurricanes, deadly dust storms, and blowing blizzards. Depending where you live, you may have experienced one of these extreme storms. Although being caught in extreme weather can be dangerous, being prepared can save your life. This nonfiction Spanish book introduces students to extreme weather, and teaches them important scientific concepts and vocabulary. The colorful images, diagrams, sidebars, and text features will keep students connected to the text. Aligned to state and national standards, the fun lab activity provides a real-world learning experience that ...

Ganador del I Premio Los Odres de poesía, el cubano Alexis Díaz-Pimienta nos muestra un verdadero festín poético de lenguajes y metros. Reflexión sentimental sobre la identidad, las caretas, el fingimiento. Todo rostro es, en esencia, un disfraz que nos protege de los otros y de nosotros mismos.

Habitat for Humanity has built more than 100,000 houses around the world. Volunteers of all ages help Habitat for Humanity. Young readers will be inspired by the work Habitat does. They may even volunteer to help!

A land of extremes, from active volcanic peaks to dense rain forests, Guatemala has sustained great civilizations and attracted foreign conquerors. While shadows of its vicious, decades-long civil war still linger, Guatemala's people work toward peace and stability in the face of corruption and impunity. Illuminating photographs, insightful facts, and informative sidebars help the reader discover what it's like to live in today's Guatemala, its ancient beginnings, dramatic landscape, rich culture, resilient people, and more.

Planck consideró como tarea científica suprema la búsqueda de las leyes que rigen el absoluto, el invariante oculto en la realidad externa. Le cupo el privilegio de descubrir uno de esos elementos universales: el quantum de acción, la constante h.