Thirty activities will take you through the ages-from the Stone Age to the age of flight. Looking at the various scientific innovations and inventions that have occurred throughout the years, students will gain exposure to chemical reactions, dyes, the shape of the earth, gravity, astronomy and more with engaging information and a household-ingredient experiment. Each includes the purpose of the experiment; a materials-needed list; step-by-step procedure; results; and information on why those results occurred. 122 indexed pages, softcover.
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