Experiment #4 February 24th, 2011
Things you will need:
-2 Big Bowls
-One Teaspoon Sugar
-Long Piece of Dish Cloth
-Gloves to Handle Dry Ice
What you need to do:
Bowl #1- Place warm water in a bowl with a few squirts of dish detergent. Stir gently and toss a handful of dry ice into the bowl. Tiny Bubbles everywhere!
Bowl #2- Place warm water into a bowl then add a handful of dry ice. Use a skinny, long piece of dish cloth that has been soaking in a solution of 2 cups of water, ½ cup dishwashing liquid, and 2 teaspoons sugar to wipe across the top of the bowl. A big-Mongo bubble should form.
What is going on here:
When you freeze water you get ice. When you melt ice you get water. When you freeze Carbon Dioxide you get dry ice. When dry ice is put into water it sublimates back into the gaseous form of carbon dioxide. In bowl #1, the soapy water traps carbon dioxide and water vapor in the form of bubbles and bubbles. In bowl #2 you are capturing the carbon dioxide and water vapor with one big bubble.