Jazmine Sapp. 4th Period
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Physical change involves a change in the matter's properties but not its chemical composition, like a snowman melting from solid to liquid. Chemical change rearranges the atomic structure and results in new substances, such as a burning tree transforming into ash and carbon. The document provides examples of physical change, like melting snow, and chemical change, like burning wood, and references interactive simulations on the topics.
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This document summarizes an experiment where a soda can filled with boiling water is crushed when placed in a container of room temperature water. The experiment uses common household items like soda cans, tongs, and a juice container instead of lab equipment. When the heated can is placed in the cooler water, the pressure inside the can decreases faster than the pressure outside, causing the can to implode. This demonstrates how atmospheric pressure works. The document also compares this experiment to how popcorn kernels pop when heated.
The Experiment
This document summarizes an experiment where a soda can filled with boiling water is crushed when submerged in cooler water. The experiment uses common household items like soda cans, tongs, and a juice container instead of lab equipment. When the heated can is placed in the cooler water, the higher pressure outside crushes the can as the pressure inside drops. This is opposite a popcorn kernel popping, where the higher pressure inside causes the kernel to expand outward rather than collapse inward.
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