Labels:book | bulletin board | dialog box | hakham | monitor | web site | window OCR: HELP How much air do you breathe out? This experim ent will help you find out how much air you breathe out in one breath. You will need trough graduated beaker, e piece sterilised tubing and some water. Do NOT attempt this experiment if you have asthma or any other respiratory illness 1) Fill the beaker full of water and hold it upside down over the tray which you should also fill with water. 2 Place one end of the tube into the beaker and then sterilise the other end with sterilising fluid such as Milton. 3 Take deep breath and blow slowly into the tube until your lungs are as empty as you can make them. Itis best to do this sitting down but be car eful not to make yourseif giddy 4 The top part of the beaker will fill with air Make mark on the beaker and work out how much air is in the be ...
