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The Daily Telegraph News in Action 4
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News in Action 4 (1999)(Daily Telegraph)[Mac-PC].iso
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00616_Text_Text Window Template.txt
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1999-02-05
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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.