Mezclas y soluciones (Mixtures and Solutions)

Sixto Paz Wells lleva varias décadas recorriendo el mundo, impartiendo conferencias y seminarios sobre temas relacionados con el fenómeno OVNI, la espiritualidad y las profecías orientados a un público en general adulto, temas de los cuales ha escrito más de una veintena de libros que le han hecho mundialmente famoso. Con Tanis y la esfera dorada hace una incursión en el género infantil y nos propone una historia fantástica que en realidad reúne mucho de todo lo que ha escuchado y aprendido, no solo en el contacto con los extraterrestres, sino con la gente, sus familias y niños en...

"Four score and seven years ago..." begins Abraham Lincoln's beautiful speech commemorating the three-day battle that turned the tide of the Civil War. The South had been winning up to this point. So how did Union troops stop General Robert E. Lee's invasion of the North? With black-and-white illustrations throughout and sixteen pages of photos, this turning point in history is brought vividly to life.

These titles look at many of the animals typically found in zoos, covering such topics as appearance, behavior, and babies. Vivid photographs compare the habitat and diet of each animal, both in the wild and the zoo.

This nonfiction Spanish book teaches students about the scientific method and introduces them to important scientific concepts and vocabulary terms like hypothesis, variables, prediction, comparisons, observation, and longitudinal study. 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.