Apr 25, 2015
The prerelease said that you will investigate the affects of carbon dioxide in the body. Ive spent all of today researching on it and doing past paper questions. Were the questions i sent you useful for task1 & 2?? Oh and what wasthe experiment like?
Have you not done it yet? Because the notes you have are literally all the questions and answers, it's excellent! The experiment is literally blowing in to three test tubes with different indicators. Then task 2 you have to hold your breath and do spearmans rank
