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| Featured Blogger: Sarah |
In science we made model cities. We studied urban runoff and the damage that it can cause. At first we did an experiment on just a green roof. A green roof is basically a garden on top of a flat roof. It has to be flat because it is a garden so if the roof is on a slant the plants and dirt will just roll off. It is just to slow down the runoff. We also did an experiment on permeable pavement. A permeable pavement is a pavement that water can go through.
After that we made changes to our design to see what worked well and what didn’t. Some kids brought home materials to make a model city. Then we made a whole city that had a lot of runoff solutions. The cities were on a slant (hill) with water (a river) underneath it. When we tested them we could choose from four different things to pollute it: food coloring, sprinkles, dish soap, and sequins. Then we did 30 sprays of water and let the water absorb for 30 seconds. Then we lifted up our cities and saw how much pollution it caused. When we did our redesign we got what we learned from the last one to make this one better. After that we had a showcase for 3N. It was really fun presenting in front of another class. When we tested them we saw how much we improved. We loved seeing our improvements.
We loved doing it and we all want to do it again!!!!!!
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| This is a picture of a green roof that my group made. |
