Laboratory Work

Lab Lesson

We went to the laboratory and we had to observe a few rules and regulations there. We had to follow the teacher's instruction carefully before using the laboratory equipment. We were introduced to a few signs that we would be seeing as well, such as the explosive sign, toxic sign, flammable sign,corrosive sign,irritable sign ,the bio hazardous sign and the radioactive sign. We did some experiments on the Bunsen burner and we all had to learn how to light it up. Although I was scared at first, after trying to light it up, I felt that it was not so scary after all. I learnt that there are 2 types of flames a non-luminous flame and a luminous flame. The luminous flame is produced when little air is allowed to interact with the flames while a non-luminous flame occurs when the air-holes are open allow air into the Bunsen burner. Sometimes, a strike back can appear and it is usually when too much air is entering the air-hole and the flame instead of burning at the top of the barrel, the gas burns at the jet.