Experimentos sencillos sobre el espacio y el vuelo

Explains, in simple terms, the reasons for skin color, how it is determined by heredity, and how various environmental factors affect it.

This nonfiction Spanish book teaches students about energy, and introduces them to important scientific concepts and vocabulary terms like amplitude, frequency, infrasound, transverse waves, and supersonic. 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. Keep students reading with this fascinating Spanish book.

Aircraft carriers are truly the fortresses of the sea! Students will get an inside–out view of these incredible floating cities, from how they are constructed to how they function as important parts of a country’s defense. Students also will learn about the various aircraft that are on board and the crew that keeps aircraft carriers in ship shape!

Un día de finales de octubre de 1936 el arquitecto español Ignacio Abel llega a la estación de Pennsylvania, última etapa de un largo viaje desde que escapó de España, vía Francia, dejando atrás a su esposa e hijos, incomunicados tras uno de los múltiples frentes de un país ya quebrado por la guerra. Durante el viaje recuerda la historia de amor clandestino con la mujer de su vida y la crispación social y el desconcierto que precedieron al estallido del conflicto fratricida. La noche de los tiempos es una gran novela de amor ambientada en el año previo al inicio de la guerra civil ...