We shall be publishing new Earthlearningideas every two weeks throughout 2010. Some of these activities will require the use of some basic school laboratory equipment and some will include more abstract ideas than we have considered in the past. We will label these activities ELI+.We are launching the new activities with 'The watery world of underground chemistry - using pH to link the atmosphere, hydrosphere, biosphere and lithosphere together' The activity involves a discussion, with demonstrations, of the likely change in pH of water as it goes through the underground part of the water cycle.
Please do try it with your pupils and let us know how they get on. This is the 70th activity on the website so there are plenty to choose from.
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