Direction: Matching type: Match Column A with Column B. Write the letter of the correct answer on the space provided in Column A. COLUMN A COLUMN B 1. These are wires that physically hold up the filament A glass envelope 2. These are the metal wires that glow brightly when B. connecting wires electricity flows through them. C. coiled tungsten filament 3. It is thin layer of glass that surrounds the light bulb D. support wire mechanism and inert gasses. 4. The wires that carry electricity from the bulb's electrical E screw cap contact to the filament, 5. The threaded base of the bulb that secures it to a lamp pasagor