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Direct linkSmithenry, Dennis W.; Kim, Jenny – Science and Children, 2010
By thinking about the concept of density and taking into account the research on children's ideas about this concept, the authors were able to unpack the typical sink or float activity and realize that it has students unscientifically making comparisons between objects by changing two independent variables (mass and volume) at one time. With this…
Descriptors: Predictor Variables, Scientific Concepts, Prediction, Science Activities
