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Below Left: These are the materials
needed to do the demo. Below right: Use a permanent marker to sketch some continents onto the underside of the Cool Whip lids.  .
. .  Below : The spreading of the ozone-rich atmosphere onto the "worlds".  Below: The "hole" (white topping) forms each September-November over Antarctica.
Below: As summer (December) begins, the "polar vortex" breaks up, mixing the ozone-depleted air with air over our heads.  Below: After several years, the effects are noticeable when our world (right) is compared to the world where CFCs were never invented (left).  |
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Back to the description of the demo |
