http://www.sciencekids.co.nz/experiments/dryicebubble.html
Have fun making a dry ice bubble that will grow and grow as it fills
with fog. This experiment is a great one for adults to do with kids.
Add water to the dry ice, cover it with a layer of soapy water and
watch your bubble grow, how big will it get before it bursts? Give it a
try and find out!
What you'll need:
-Water
-A large bowl with a lip around the top (a smaller bowl or cup will work too)
-A strip of material or cloth
-Soapy mixture for making bubbles (water and some dish washing liquid should do the trick)
-Dry ice - one piece for a cup, more for a bowl. Places where adults can
buy dry ice include large grocery stores and Walmart Butchers and ice
cream stores might have some too.
Safety first! Be careful with dry ice as it can cause
skin damage if not used safely. Adults should handle dry ice with
gloves and avoid directly breathing in the vapor.
Instructions:
1.Place your dry ice in the bowl and add some water (it should start looking like a spooky cauldron).
2.Soak the material in your soapy mixture and run it around the lip of
the bowl before dragging it across the top of the bowl to form a bubble
layer over the dry ice.
3.Stand back and watch your bubble grow!
