Mathilde Bargoin http://water.chemistry2011.org/c/message_boards/find_message?p_l_id=16829&messageId=47940 2011-06-20T15:50:12Z 2011-06-20T15:50:12Z

To conduct the Solar Still Challenge, you will use:<br /><br />• Large metal or plastic bowl<br />• Small, shallow glass or cup (clean)<br />• Measuring jug or cylinder<br />• Cling film (wider than the bowl)<br />• Small stone (pebble)<br />• Hot water<br />• Food dye and salt<br /><br /><br />The activities of the Global Water Experiment are designed to be undertaken with equipment and materials commonly available in a school laboratory. However if preferred, a kit especially designed for carrying out the activities in the Global Water Experiment can be purchased from the Radmaste Centre at the University of Witwatersrand in South Africa: http://www.radmaste.org.za/. Adapted experimental protocols have been developed for these kits to ensure consistency with the Global Water experiment.<br /><br />The kit is supplied as a school resource with the common equipment and materials to perform the experiments and ten individual sets of equipment for student use (which can also be ordered individually). The price of the kit is about $US165 and does not include postage and packaging. The order form and the up-to-date prices can be found at:<br />http://www.radmaste.org.za/docs/RADMASTEorderform.pdf

Mathilde Bargoin 2011-06-20T15:50:12Z Mathilde Bargoin http://water.chemistry2011.org/c/message_boards/find_message?p_l_id=16829&messageId=36795 2011-05-20T14:35:10Z 2011-05-20T14:35:10Z

Hi everyone!<br /><br />The fourth experiment about the Solar still seems amazingly important to me: you can turn any kind of water into pure drinkable water!!<br />Surprisingly, this is the experiment which got the least schools involved. I am wondering if it is because of the need of the sun and heat to make the experiment?<br />If it is the case I am sure it won&#039;t be a problem for long because the summer is coming!!! <img alt='emoticon' src='http://water.chemistry2011.org/IYC-theme/images/emoticons/happy.gif' /><br /><br />Who has done the test? How did it go?<br /><br />Who wants to give us tips about it? <br /><br />Thank you all,<br /><br />Mathilde

Mathilde Bargoin 2011-05-20T14:35:10Z