DAY SEVEN

October 28, 2013 

Narrative:

Due to the fact that we had a class field trip last week, we were not able to perform observations for a week. Although our ecosystem didn't change drastically, there were some changes from our last observation. For example, one of our stems has become very brown and transparent. The other two stems are fairly green and healthy-looking, as all three were last week. As for our elodea: last time, it was very green and healthy. This week, we found some of the elodea starting to brown. One major thing we noticed this week was the soil characteristics. The soil seems to be drier and at a lower level than two weeks ago. Our water seemed to be much murkier than our last observation, which made it impossible to spot any daphnia (although we haven't seen any in weeks!) Our snails still seem to be producing and thriving in our ecosystem.

Observations:

Here you can see our leaves starting to wither very quickly. 

One out of our three stems has also begin to turn brown.

Our once healthy elodea is starting to look a little sick.

However, our snails seem to be doing really well in our ecosystem.

Predictions:

For next week, we predict that there will be some more gradual changes. We feel that the leaves of the plant and the elodea might continue to brown. The condensation has been getting more and more dense, so we think that this might continue to happen. We are really starting to worry about the health of our ecosystem because of the water and soil quality. We are afraid that our ecosystem might be in even worse condition next week.