THE BUNSEN BURNER

Question 1

Give the 5 steps to light as Bunsen burner

Answer 1

1. Push the rubber tube on to a gas tap
2. Put the Bunsen burner on a heat-proof mat
3. CLOSE THE AIR HOLE
4. Hold a match or a lighted splint about 5 cm above the chimney
5. Turn on the gas

Question 2

What safety precautions must you use when using a Bunsen burner? - 4

Answer 2

1. ALWAYS WEAR SAFETY SPECS
2. When you are not using it, make sure it is on a yellow flame or turn it off
3. If you are using the blue flame, hold the object you are heating just above the inner cone of the flame
4. Always handle the Bunsen burner by its base - it may be hot

Question 3

Should the air hole be open or closed when the Bunsen burner is lit?

Answer 3

CLOSED

Question 4

What colour is the flame when the air hole is closed?

Answer 4

ORANGE

Question 5

What colour is the flame when the air hole is open?

Answer 5

Faint blue with an inner blue cone

Question 6

Do you open or close the hole to produce a heating flame?

Answer 6

Open

Question 7

What 2 things must you do when carrying a lighted splint?

Answer 7

1. Hold it at the unlit side

2. Guard the flame with your hand