Lightsticks contain a substance that breaks down during a chemical reaction. A release of energy (as light) accompanies this reaction. Therefore, the amount of light released is proportional to the number of molecules breaking down. a) The lightsticks below are in water of different temperatures. The lightstick on the (right or left) is in the warmer water. b) If a lightstick was placed in a freezer the intensity of a lightstick would and the duration of its glow would

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Dissection

Dissection is the process of cutting up the tissue of a dead or live animal or plant, to do anatomical studies and surgical treatments. The purpose of dissection is to learn more about the overall structure of organs and organ systems and thereby understand the physiology of the organism.