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In this quick activity, learners observe how the added sugar in a can of soda affects its density and thus, its ability to float in water.

Learners investigate one factor affecting reaction rates: temperature. In a darkened room, two identical lightsticks are placed in water -- one in hot water and one in cold water.

Learners model the Sun-Earth-Moon system to show what causes the Moon's appearance to change when viewed from the Earth.

This is a highly visual demonstration that illustrates both the effects of density and chemical reactions.