Introduction We made closed ecosystem because we have to study for which organism can alive in closed ecosystem. We can study how to living things are servieve and which material can we use than they are alive. What kind of food and how much water they needed? We have to put hole to reach the oxygen for them in closed ecosystem.
Procedure and Materials In ecobottle, we put the Rocks, Water, Duckweed, Elodea and Fish in the bottom. We put holes in the bottle lead and put the straws across in the holes. And we put the Soil on it, some Grass seeds and earth warm in the second bottle. In third step we put some Water, Elodea for Snail. In forth one we put some Soil, some Grass and Grass seeds for the Cricket. And we passed thru Straws for the Oxygen. And we closed our Ecobottle.
Observation of Ecobottle

Date | General Observation | Focus Question for the Day | Day 1 09/13 | Fish, Cricket, Snail are alive.Earth warm is dead. Grass is grown up. | Yes there is one change. Grass is grown up from the grass seeds. | Day 2 09/14 | Fish, Cricket, Snail are alive. And grass is growing up from the duckweed. | Grass is growing up from the seed. Water level is increasing. | Day 3 09/15 | Fish, Cricket, Snail are alive. | No, I don’t think so… | Day 4 09/16 | Fish, Cricket, Snail are alive. Grass is growing up from the duckweed. | May be 1 week they grown up. | Day 5 09/17 | Fish, Cricket, Snail are alive. Still grass is growing up from the soil. | | Day 6 09/20 | Fish, Cricket, Snail are alive. | If ecobottle have overtime after some days all things going to die and stop growing living things like plants. | Day 7 09/21 | Fish, Cricket, Snail are alive | |

Analysis and Conclusion In our Ecobottle Project Fish, Snail, Cricket was alive until we opened ecobottle. But after few days Earth warm was dead. All the living things was alive except Earth warm. Fish, Cricket, Snail are thrived animal because the fish eats plants, Cricket eats grass and soil. Earth warm was dead quickly because there was melt so may be it took more than enough heat of sun light or it didn’t took enough water. The grass was grown up. If we’ll try again than we’ll put some mare water for earth warm.