Abstract:Changes in the physical state of matter may be better understood by students in the 5th grade if students acquire basic notions of corpuscular and kinetic-molecular theory. The early introduction of the concept of particle, its dynamics and the interaction between particles may also reduce the appearance of alternative concepts and facilitate the future understanding of these theories. Although they are abstract concepts and difficult to understand, both by the nature of the particles and by their size, the us… Show more
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