2. Boo bubbles What are BOO-BUBBLES?
Boo Bubbles are http://www.stevespang
what you get when lerscience.com/experi
you fill a bubble with ment/boo-bubbles-dry-
a carbon dioxide ice
cloud using a cloud
bubble generator
Materials: • Two liter bottle•Dry ice• Heavy duty glove• Funnel• Strip of cotton • Towel
• Rubber tubing • Dish soap• Utility blade •Small-plastic portion cups (2 oz)• Bubble gloves
• Safety glasses
