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Here you can find a series of questions asked by the website users. Please feel free to add any other questions you may have, in the right section. You don't need to be logged in to ask a question.

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What material do I need for this experiment?
To conduct the Solar Still Challenge, you will use:

• Large metal or plastic bowl
• Small, shallow glass or cup (clean)
• Measuring jug or cylinder
• Cling film (wider than the bowl)
• Small stone (pebble)
• Hot water
• Food dye and salt

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.

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:
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