4M Science - Clean Water Filter Science
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Experience how water is filtered in a simple and pure way with the 4M Clean Water Science kit. This purifying system demonstrates the scientific way of extracting salt from sea water. All you need is a water glass and your on your way to creating your own desalination plant. Includes: a plastic filter system, active carbon, sand, rock, filter paper and detailed instructions. Age 8+ years. Part of the Green Science range. Distributed in New Zealand by Holdson.
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