https://padlet.com/zemachbereshit/pol77hb7gshifzjf חקר איכות מים en-us 2022-02-17 09:01:39 UTC 2025-04-24 08:02:18 UTC hello@padlet.com https://padlet.net/icons/png/1f41f.png zemachbereshit https://padlet.com/zemachbereshit/pol77hb7gshifzjf/wish/2052782101 1. הכינו את המסנן על פי דף ההוראות סננו את המים
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