Written by Bradley Robins, 2015 Galbraith winner from Brock University.
Invisible Fire Extinguisher
Demonstrate the production of gas, specifically carbon dioxide, from the chemical reaction of baking soda and vinegar. The effect this gas has on fire and its density compared to air will be explored. This experiment is another version of the splint test activity, which is commonly done in grade 9 to investigate the properties of various gases.
Measuring Lung Capacity
Investigate lung capacity and learn to measure it using a spirometer. Trends that exist within the collected data will be identified, discussed, and explored further.