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Paperback
from Natl Geographic Soc Childrens books (April 1, 1983)
9780870444302 | details & prices | Rec. grade levels 3-4 | List price $8.50
About: Uses such familiar objects as a bicycle, neon sign, calculator, and hot air balloon to introduce the field of physics
About: Uses such familiar objects as a bicycle, neon sign, calculator, and hot air balloon to introduce the field of physics