This week, in preparation for Halloween. We did some spooky science.
One of the activities was making bubbles with dry ice.
1) Put a chunk of
dry ice and a half cup of warm water in a cup.
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2) dip a pipe cleaner into bubble solution |
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3) Slide the pipe cleaner over the mouth of the cup to stretch a film over the opening |
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4) Watch the escaping CO2 gas fill the bubble with fog |
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Or just drop a chunk of dry ice directly into the bubble solution. This will make a foggy foam "grow" out of the cup. |
We use Exploratorium's home made
bubble solution recipe.