Tag Archive for 'decompression-sickness'

Under Pressure ScholAR Demonstration

Published in Lesson Plans. Tags: chemicals, chemistry, colloids, decompression sickness, expansion of gases, gas laws, pressure, scholar, solubility of gases.

Purpose
To illustrate expansion of gases under reduced pressure.

Materials

Shaving cream
Marshmallow
Soda water
Doll’s head
Vacuum pump with bell jar

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