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"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.

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....

Tras asomarse al futuro y ver el negro panorama que espera a nuestro planeta, Natalia y Mayden deben concienciar a la gente de la importancia de colaborar entre todos para evitarlo. Gaia, la Tierra, no puede seguir soportando la desaparición de especies y la invasión de plástico. Pero los negacionistas, liderados por los youtubers Magufa y Camelo, van a tratar de evitarlo ridiculizándoles en sus vídeos. ¿Cómo serán capaces nuestros amigos de frenar la catástrofe medioambiental? Los autores cuentan con más de 14.500.000 suscriptores en YouTube.

Huracanes y tornados is one book in the Spanish-language Gran Atlas de la Ciencia series that covers today's most popular science topics, from digital TV to microchips to touchscreens and beyond. Perennial subjects in earth science, life science, and physical science are all explored in detail. Amazing graphics--more than 1,000 per title--combined with concise summaries help students understand complex subjects. Correlated to the science curriculum in grades 5-9, each title also contains a glossary with full definitions for vocabulary.