الوصف
Science on the Sidewalk turns ordinary streets, parks, and schoolyards into living laboratories. With nothing more than coins, chalk, string, and keen eyes, you'll guide 7-11-year-olds to test ideas about puddles and rain, shadows and sunlight, sound and wind, moths and streetlights, webs and weeds, ramps and rails. Every activity is built around fair testing, careful measurement, and gentle respect for living things and shared places.