Dry ice labs 10.21

The document describes a series of experiments using dry ice conducted by Grade 5 students. Dry ice is the solid form of carbon dioxide and goes directly from solid to gas through sublimation. In the first experiment, bubbles were observed in a fish tank when dry ice was added. Later experiments involved adding dry ice to apple juice, balloons, film canisters and beakers of hot water. Observations were made such as the apple juice becoming fizzy, balloons inflating, and carbon dioxide gas rising from the beakers. The experiments demonstrated dry ice's sublimation and how carbon dioxide is denser than air.