La represa de Itaipú

Describes how the rig was built, how it stands out in the water, and how much drilling it does in a day.

Born in Warsaw, Poland, on November 7, 1867, Marie Curie was forbidden to attend the male-only University of Warsaw, so she enrolled at the Sorbonne in Paris to study physics and mathematics. There she met a professor named Pierre Curie, and the two soon married, forming one of the most famous scientific partnerships in history. Together they discovered two elements and won a Nobel Prize in 1903. (Later Marie won another Nobel award for chemistry in 1911.) She died in Savoy, France, on July 4, 1934, a victim of many years of exposure to toxic radiation.

Biography of Benjamin Franklin, a great American inventor, statesmen and diplomat as well as one of the founding fathers of the United States of America. In graphic novel format.

This nonfiction Spanish book teaches students about producers and consumers, and introduces them to important scientific concepts and vocabulary terms like nutrient cycle, food web and photosynthesis. 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.

Ariadna tiene el corazón dividido: como un fuego se ha encendido su amor por Teseo, el joven llegado desde Atenas para matar al Minotauro o morir en el Laberinto. ¿Qué debe hacer? ¿Debe dejar que Teseo se pierda para siempre en el palacio de los cien intrincados pasillos? ¿O bien debe ayudarlo a matar a su hermano y luego huir con él de la cruel Creta? Pero, ¿pueden realmente decidir los hombres o son los dioses quienes tejen el frágil hilo de su destino?