Arte y cultura: Arte abstracto: Líneas, semirrectas y ángulos (Art and Culture: Abstract Art: Lines, Rays, and Angles)

Describes Formula One cars, including their design, features, and races. Written in English and Spanish.

En Colombia ha predominado, por lo que a la poesía hace referencia, una retórica de sensaciones, aún en autores tan vigorosos como un Silva, un de Greiff, un Barba-Jacob, un Aurelio Arturo. Con Eduardo Gómez, por primera vez escapamos de ese círculo de ondas morosas y adormecedoras.

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....

Imagine traveling at half the speed of a jet plane without ever leaving the ground! Students will discover the technology that makes such speeds possible, from special tracks and safety precautions to aerodynamically designed trains. What are the limits to the speed of trains? What imposes those limits? Students also will read about the future of passenger train travel, from flying trains to trains that use huge magnets to levitate inches or centimeters off the track. Some trains safely reach speeds of more than 200 mph!