Experimentos sencillos con sólidos y líquidos

"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.

Discusses the physical characteristics, feeding and mating behavior, interaction with humans, and habitat of whales.

Una guía al mundo prehistórico de los dinosaurios con mapas, ilustraciones, texto, y extensiones gráficas.

Artists use paint, clay, metal, wood, sand, and even food to create different kinds of art. You can use similar items to make art, too! Introduce early readers to basic concepts with this book that will engage students in learning as they develop their comprehension and literacy skills. Featuring exciting TIME For Kids content, this full-color Spanish book will keep students reading from cover to cover. Aligned to state and national standards, this text introduces students to simple informational text features including a glossary, vocabulary list, and bold font.