If you have access to dry ice, you can create a great special effect for your upcoming Halloween party– artificial fog. You’ve probably seen this effect in the past. If you drop a chunk of dry ice (that is, frozen carbon dioxide) into a bowl of water, the water will bubble and a thick, dense fog will form. How does that fog compare to natural fog? And what factors influence how thick the artificial fog will be and how long it will last? Tune in to today’s episode of Weather Break before you start to plan your Halloween decorations!
If you are looking to purchase dry ice, try any major supermarket. Otherwise, try companies that sell regular ice to grocery stores and mini marts–we purchased ours at Arctic Glacier. It should cost less than about a dollar per pound.
We can’t necessarily vouch for either the safety or the scientific value of some of these explanations, but if you want to see some pretty cool demonstrations of the kinds of things that you can do with dry ice, check out some of these YouTube videos.