Afbeelding: Lisanne Groenewoud Growing Plants on fish pee Day I Workshop 'Planten kweken op vissenpis': learning about and building miniponic-systems (8th grade).
Afbeelding: Lisanne Groenewoud Growing Plants on fish pee Day I Workshop 'Planten kweken op vissenpis': learning about and building miniponic-systems (8th grade).
