KS3 Investigating Science

• What is the purpose of a Bunsen burner in science?

  To provide a controlled flame for experiments
• What are the main parts of a Bunsen burner?

  • Outer cone
  • Inner cone
  • Chimney
  • Collar and air hole
  • Hose
  • Heatproof mat
  • Base
• What are the three types of flames produced by a Bunsen burner?

  1. Safety Flame

  • Closed air hole
  • Bright yellow, quiet, not hot

  1. Blue Flame

  • Half-open air hole
  • Light blue, quite hot, used for heating liquids

  1. Roaring Flame

  • Open air hole
  • Noisy, blue, very hot, used for quick heating
• What is the characteristic of the Safety Flame?

  Closed air hole, bright yellow, quiet
• When is the Safety Flame used?

  When lighting the burner and not using it
• What is the feature of the Blue Flame?

  Half-open air hole, light blue, quite hot
• What is the purpose of the Roaring Flame?

  Used for heating substances quickly
• What should you do if your Bunsen burner goes out?

  Turn off the gas at the gas tap
• What are the safety precautions when using a Bunsen burner?

  • Wear goggles
  • Tie back long hair
  • Clear the working area
  • Use a heatproof mat
  • Check hose for damage
• What gas does a Bunsen burner use as fuel?

  Methane gas
• What is the main color of the Roaring Flame?

  Blue
• How does the amount of air affect the flame type in a Bunsen burner?

  More air creates hotter, noisier flames
• Why should you not use a Bunsen burner with a damaged hose?

  It can cause gas leaks and fires
• What is the purpose of the heatproof mat when using a Bunsen burner?

  To protect the surface from heat damage
• What are the steps to safely light a Bunsen burner?

  1. Check hose for damage
  2. Connect hose to gas tap
  3. Ensure air hole is closed
  4. Light a splint
  5. Turn on gas at tap
  6. Adjust flame size as needed
• What are the hazard symbols associated with laboratory safety?

  • Corrosive
  • Explosive
  • Irritant
  • Toxic
  • Flammable
  • Health Hazard
  • Oxidising
  • Environmentally Damaging
  • Compressed Gas
• What apparatus is commonly used with a Bunsen burner?

  • Beaker
  • Tripod
  • Clamp stand
  • Gauze
  • Evaporating dish
  • Filter funnel
  • Conical Flask
  • Test tube rack
  • Thermometer
  • Measuring cylinder
• What is the purpose of the collar on a Bunsen burner?

  To adjust the air hole for flame control