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SCIENTIFIC ENDEAVOUR - Coggle Diagram

- - - - study of composition and chemical properties of matter.
    - - study of rocks, minerals and the structures of the Earth.
    - - study of biochemical processes in living things.
    - - study of matter, energy and forces.
    - - study of living things and their life processes.
- - - - Also called luminous blue flame
      - Difficult to see in a well-lit room
      - Commonly used for gentle heating
      - Air hole is opened to allow gas to burn completely in sufficient air
      - About 500 DEGREES CELCIUS
    - - The hottest flame
      - Also called the roaring blue flame
      - Characterised by a light blue triangle in the middle
      - Air hole is opened completely to allow gas to burn completely
      - Only flame that makes a noise
      - Used for strong heating
      - About 700 DEGREES CELCIUS
    - - Air hole is closed fully, so gas cannot burn completely due to insufficient air. Thus, soot (carbon particles) is produced.
      - About 300 DEGREES CELCIUS
      - Yellow or orange colour
      - Not used for heating but to show that the Bunsen burner is turned on
      - Also known as the safety flame or luminous yellow flame
  - - - Hence, the gas burns near the air hole instead of burning at the top of the barrel.
      - When a strike-back occurs, the gas supply should be turned off immediately.