science bunsen burner

• Barrel

  raise the height of the flame for ease of use

  Air hole

   to allow air to enter the burner

  Gas hose

   to carry the gas from the gas tap

  Collar 

  turned to open or close the air hole to obtain the required flame type

  Metal Base 

  -wide and heavy so that the burner is less likely to topple
• Air-hole Closure:

  • When lighting the Bunsen burner, always keep the air-hole closed
• Moderate Heating:

  • For moderate heating, keep the air-hole half open
• Strong Heating:

  • To heat strongly, keep the air-hole fully open
• Adjusting Flame Type:

  • Adjust the type of flame by turning the collar
• Adjusting Flame Height:

  • Adjust the height of the flame by turning the gas tap
• Closed Air-hole Flame Color:

  • Flame appears yellow when the air-hole is closed
• Open Air-hole Flame Color:

  • Flame appears blue when the air-hole is open
• Safety Measure:

  • When not in use, keep the air-hole closed to prevent accidents
• Visibility and Safety:

  • Keeping the air-hole closed ensures the flame is easily visible and not hot when not in use
• Hottest Part of Flame:

  • The hottest part of the blue flame is just above the central, blue cone