Phosphates give nettles high profile

1 	Why do plants need phosphorus? You might like to refer to the article 'How 	chemistry sees us through everyday life' at this point.

2 	Why is the giant strain of nettle found on the banks of a river, 
	and in ditches?

3 	Phosphates are used in washing powders as well as fertilisers. Find out why.

4 	Design an experiment to test whether dock leaves really do 
	ease/cure nettle stings.

5 	Find out how phosphates can be removed in sewage treatment plants.