Ecocolumn is a model of how the world interacts. The model is made of plastic soda bottles and has aquatic space for fishes and aquatic plants, it has a part with soil to grow some seeds and a space in between. This model shows how the world interacts and maintain itself. We did it in my APES class.
eco-column
It represents how Earth's natural systems work and how the biotic and abiotic organisms interact with eachother.