Bunsen+Burner

====** Bunsen Burner ** One of the equipments that would be usually used is the Bunsen burner. The Bunsen burner is used when you want to heat substances. There are a few parts to the Bunsen burner. The following are the parts to the Bunsen burner:====
 * Barrel (to raise the flame to a suitable height for burning)
 * Air-holes (to allow air to enter the burner)
 * Collar (to control the amount of air entering the burner by opening or closing the air-holes)
 * Jet (to enable the gas to rush out from the gas supply and to draw in air)
 * Gas tap (to control the flow of gas to the Bunsen burner)
 * Base (to support the burner so that it will not topple)

__**Types of flames**__
1) Luminous flame - occurs when the air-holes are closed and very little air is allowed to mix with the gas - carbon particles are deposited on apparatus - orange coloured flame - apears flickering and unsteady - not very hot 2) Non-luminous flame - occurs when the air-holes are open, allowing air into the burner -blue coloured flame - burns steadily - hotter then the luminous flame - hottest part of the flame is just above the tip of the blue zone

**__Important Things__**
Here are some important points to take note of when using the Bunsen burner: 1) Strikeback - occurs when there is too much air entering the air-hole - instead of burning at the top of the barrel, the gas burns at the jet - when a strike back occurs, turn off the burner immediately 2) Heating Liquid in a Beaker - put wire gauze on tripod stand - put beaker of liquid on it - light Bunsen burner - push it under the tripod stand - turn off the burner when the liquid reaches the required temperature 3) Heating Liquid in a Test-Tube - hold the test-tube with a test-tube holder - ensure that the mouth of the test-tube is pointing away from yourself and others - slant test-tube at about 45 degrees and heat it in the hottest part of the Bunsen flame - move the test-tube through the flame - liquid to be heated should occupy not more than one-third of the test-tube

Reflections
After learning how to use the Bunsen burner, I now know the parts that the Bunsen burner has and also how to safely use a Bunsen burner in the science lab and what precautions I need to take when boiling stuff over the Bunsen burner. We also have used the Bunsen burner in the lab to burn ice-cream sticks so that we know the properties of the different kinds of flames have when burning stuff. My partner and I enjoyed that lesson very much as we were allowed to use the Bunsen burner.