The two test tubes collecting gas from the electrolysis of water yesterday were removed from the water and both tested with a burning splint. The test tube of hydrogen produced the classical "bang sound" while the oxygen test tube just about allowed the glowing splint to glow a little brighter. The lack of oxygen in the tube was most likely due to escape of the gas overnight, and absorption into the water. A fresh test tube of oxygen gas was prepared from the decomposition of hydrogen peroxide, tested with a glowing splint which reignited when placed into the test tube. The chemical reactions for both the electrolysis and the decomposition were written out. The production of carbon dioxide gas was done in a test tube and the gas tested by placing a burning splint at the mouth of the test tube and observing that it went out immediately .A short video showing the combustion of hydrogen gas in a balloon, as well as oxygen and hydrogen gas in soap bubbles was viewed.