LESSON DESCRIPTION:
Students do a series of experiments with dry ice (frozen Carbon Dioxide) and learn how to use dry ice to: make a hollow ice egg; make soap bubbles that float in mid air; and make dry ice fog. Students will be confounded by the errie noises produced when they apply metal to their dry ice cubes.

TIME REQUIRED: One Hour

OBJECTIVES:
This experiment can be customized to make connections to the following concepts: 1) states of matter 2) weather, clouds and fog 3) greenhouse effect 4) respiration 5) freezing point 6) cells and nerves: frostbite and numbness 7) gas exchange through bubbles and balloons.

FACILITIES REQUIREMENTS:
Indoors or outdoors; requires table space; messiness factor consists of small amounts of water on the tables and the floor.

SAFETY:
All appropriate safety warnings for working with Dry Ice (Carbon Dioxide cooled to below -109.3Fahrenheit) will be given. Students are reminded not to touch the dry ice for more than a second. In theprocess of doing this experiment a small amount of water can spill on the tables or floor—this can present aslip hazard if it is not cleaned up right away.

CALIFORNIA SCIENCE STANDARDS ALIGNMENT

Kindergarden: 1st Grade: 2nd Grade: 3rd Grade: 4rth Grade:   5th Grade: 6th Grade: