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On 07/10/05 14:17, Dan MacIsaac wrote:cut
Classic QUALITATIVE activities for elementary science teachers
providing supporting evidence of small particle nature of matter
include observing:
[1] drops of food colouring dissolve in hot and cold water in large
beakers or fish tanks
[2] opening a bottle of perfume near the door of a large room; have
students scatter throughout room and raise hands as they smell the
perfume
[3] watch sugar cubes and ice cubes dissolve in water (who says watching
stuff