Louis Pasteur

Defines levers, explains their functions, and suggests simple experiments to demonstrate how they work.

The Uses Of Wind Energy Is The Topic Of This Book. Explains The Positive And Negative Impact This Form Of Energy Can Have On Our World.

Defines screws, explains their functions, and suggests simple experiments to demonstrate how they work.

Illustrations and text present the history, geography, people, politics and government, economy, and social life and customs of Arizona, the Grand Canyon State.

Provides clues about a horse's physical characteristics, behaviors, and habitats in a guessing game format

Find out what sets the human life cycle apart from other living things in this informative, Spanish-translated nonfiction title. With intriguing facts, informational text, and vibrant photographs, children will be introduced to the biological phases of our life cycle--from infancy to adulthood.

Introducción biográfica y crítica. Noticia Bibliográfica. Bibliografía Selecta. Nota Previa. Jardín de Flores Curiosas. Preliminares. Tratado Primero. Tratado Segundo. Tratado Tercero. Síguese el Cuarto Tratado. Comienza el Tratado Quinto. Tratado Sexto. Índice de Láminas.