Conservación de la masa (Conservation of Mass)

Light can travel faster than anything else in the universe. But what exactly is light, and where does it come from? This nonfiction Spanish book teaches students all about light, and introduces them to important scientific concepts and vocabulary terms like infrared, ultraviolet, photos, and visible spectrum. The intriguing images, detailed diagrams, and stimulating sidebars will keep students connected to the text. The fun lab activity provides a real-world learning experience that supports STEM instruction. Aligned to state and national standards, the leveled text supports differentiation....

This book introduces readers to the first inhabitants of the Wild West. Readers will learn about Native American struggles over land and the historical and heartbreaking Trail of Tears. Through rich text and historic photographs, readers will learn about how life changed for Native Americans when white settlers started moving west. Engaging text explains important people and events, including the Great Sioux War of 1876 and Crazy Horse. "Truth or Myth?" fact boxes shed light on the real experiences of Native Americans while sidebars provide additional opportunities for readers to deepen their ...

Provides Information About Mammals, Physical Characteristics, Behavior, Mating, And How They Protect Themselves From Dangers.

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.

Aprende un montón de cosas sobre mitología con esta divertídisima historia de Lucas y su abuela, donde los superhéroes y los dioses griegos se ven las caras. Las vacaciones para superhéroes de Lucas, su abuela y su amiga Leonor duran apenas unas horas. Themis, la diosa griega de la justicia, los necesita para una misión: devolver su forma humana a personas que llevan una eternidad transformados en araña, pavo real, árbol de laurel o vaca. Por el camino, descubrirán cómo terminaron recibiendo semejantes castigos... Además de disfrutar de la lectura, los niños aprenderán acerca de...