CLEAN STREAMS

For the the last 2 weeks we have been studying about clean streams. We're learning about microinvertebrates. On the first week we went to the Maitai River with sieves and ice cream containers. We had to play a game. You had to catch all of them on the sheet. Alex and I caught all of them on the list. At the end of all of it we had to let them go. What I have learned about microinvertebrates is that some hate living in dirty water and some hate living in clean. What's up with that?