Water Care / Te Taiao O tamaki

Today I learnt that if we put water with oil and the fish go swimming through that oil they will try to clean them self   and that oil or chemically that they swim through  they will end up died and you will see there on the sacrifice of the water.In this DLO it explains what we done like we made a race course and we made a lake the we had to see how much water it could hold.Then we put rock down in places and then we tried to find out how many rivers we maded