This week in science we have done 3 experimets. The Glowing Splint experiment, the Lime Water, and the Pop Test experiment.
Glowing Splint
When we did the Glowing Splint experiment we had to light the splint with a Bunsen Burner. Then we let the tip burn for a couple of seconds then blew it out. The next thing we did was put the smouldering splint into a test tube that had Hydrogen peroxide and Manganesse Dioxide in it. These two chemicals together produced Oxygen. The splint relit because it was exposed to the oxygen in the test tube. This result proved that the gas in the test tube was oxygen.
Pop Test
For the Pop Test we wanted to test for Hydrogen Gas. We tested this by putting 2ml of Hydrochloric acid into a test with a piece of Magnesium metal. When we combined the two together the test tube started to heat up showing us that there was a reaction. Then we covered the test tube with another test tube to make sure no gas escaped. After this we lit a wooden splint and tilted the top test tube then inserted the splint which caused a pop sound. This proved that the gas that was trapped was Hydrogen Gas.
