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Biological and chemical water research
In many places in Flanders, a large-scale installation purifies the waste water. In the garden of De Helix this is done on a small scale by marsh plants. The students investigate the treated waste water in the pool at the end of the circuit, on …
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Water: MOS bundle
These tokens make the theme of water negotiable for preschool children and primary school children.
- How much water do you use if you wash your hands, flush the toilet, clean the plate, water the plants ...? (water consumption).
- About the causes of …
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