 | After LOTS of discussion around the topic of whether groundwater was clean enough to drink...we turned to some research (pictures and video) to help us uncover a lot of new things about groundwater (and wells)! First off, wells are incredibly deep in the ground (like 200ft)! They are directly connected to houses and contain no special "filtration" devices other than a screen. This got us thinking about the particles of the ground and how they might work naturally to filter water clean enough to drink! |
Mrs. Brinza built a physical model to help the class process this newly generated idea. And after using marbles as "water particles," and styrofoam/ping-pong balls as other dissolved particles in the water, we figured out that YES, the ground naturally filters the water such that only water is left deep in the ground, where a well is drilled.
Students created their own models to explain their thinking!
All this talk regarding groundwater being clean made us wonder something...
That dirty water we saved from the beginning of our unit which Mrs. Brinza still hasn't thrown away...
Could we try to "clean" it by using earth materials?
So WE DID! And the results are astounding...see what the water looked like BEFORE it went through earth materials and what it looked like after! Now granted, our models are really small compared to a real well that's built into the ground to capture groundwater...but this is amazing!
That dirty water we saved from the beginning of our unit which Mrs. Brinza still hasn't thrown away...
Could we try to "clean" it by using earth materials?
So WE DID! And the results are astounding...see what the water looked like BEFORE it went through earth materials and what it looked like after! Now granted, our models are really small compared to a real well that's built into the ground to capture groundwater...but this is amazing!
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