Which water filter is the best?
Not everyone can turn on the tap to get clean water. We want to change this. We wanted to find easy ways to clean water. We tried out four ways: 1. We made a filter from stuff we found outside 2. We made a filter with different coarseness of sand 3. We made a filter with different sponges 4. We used...
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Veröffentlicht in: | Future science OA 2018-07, Vol.4 (5s), p.11-15 |
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Hauptverfasser: | , , , , , , , , , , , , , , , , , , , , , , , , , , , , |
Format: | Artikel |
Sprache: | eng |
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