Lung volume

Question 1

1

Answer 1

Half fill a large bowl with tap water

Question 2

2

Answer 2

Place your hand over the end of the full drinks bottle to create a seal. Carefully turn it upside down and place the neck of the bottle in the bowl of water.

Question 3

3

Answer 3

Carefully remove your hand, making sure that the neck of the bottle stays under the water

Question 4

4

Answer 4

Take a length of rubber tube, and feed one end into the neck of the bottle.

Question 5

5

Answer 5

Wash the other end of the rubber tubing with an antiseptic wipe

Question 6

6

Answer 6

The student needs to take a deep breath in.

Question 7

7

Answer 7

Now breath out into the rubber tubing for as long as possible

Question 8

8

Answer 8

record the volume to the nearest 500cm3 from the marker scale on the outside of the bottle.

Question 9

9

Answer 9

refill the bottle with water, and repeat for the other students