This week our class made stream tables. Our group was in charge of making the stream table for residential use. First we went outside and gathered materials. We used these materials to make two models of streams. We made a good model and a bad model.
For our good model, we made what we thought was the best scenario for a residential stream, and for our bad model, we made what we thought was the worst possible scenario. We used our models to find out how water interacts with the environment in residential areas. In our bad model, we noticed that the water picked pick up trash and litter. In our good model we noticed that the water stayed relatively clean because of the healthy environment.
In conclusion, the residential land around a river must be planned carefully if the river is to stay healthy.
-Owen, Breanne, Andrew, Siena, Desmond & Mikalah
Our group ran a stream table in a commercial and industrial setting. We created a worst case scenario and a best case scenario. They are different in cleanliness. When we added water to our model, the best case scenario didn’t erode due to compacted dirt. The worst case scenario almost completely eroded and the water was filled with water and dirt. The dirt in the worst case piled up and took over the water, causing the time it took to flow over last awhile. In the best, the water moved quickly without any mud to stop the water flow.
On page 43 of our science binders, in the industrial uses section, it says that the water is collected from rivers for manufacturing purposes. The polluted water is then returned back into the river, bringing harmful chemicals. As said in the book, the chemicals are bad for the environment, aquatic organisms, and the land around it, when released back into nature. We can conclude that when factories are built around rivers, they pollute the water and land.
- Ethan, Piper, Shannon, Angelita, Nicholas, Shannon, Patty, Maia & Claire
Residential Stream Table ModelThis week we ran our models and started answering questions about what we observed. During the past two weeks, we have been creating two river models which were a best case scenario model and a worst case scenario model. There was four different subjects that we were assigned to do and our group got agricultural land use. Agriculture is a farming community. What we did for the best case scenario model was a river with a farm and a field far away with healthy grass in between and water moving through. For the worst case scenario, we did a sandy river with a beaver dam in the middle of the model, we also placed the farm very close to the river causing manure, fertilizers, and pesticides to runoff into the river.
-Noah, Liam, Evan, Gwen, Carley, Trinity & Sage