After doing some more "figuring out," we figured it out...and it makes sense!
The water purification process starts out in the cribs and eventually ends up in our homes, clean enough to drink. Since some of the values we tested decreased, we knew things had to be removed from Lake Michigan. Other values increased, which meant things were added!
In order to remove things, we figured out about coagulation (making particles stickier and ultimately bigger so they could sink and/or get trapped), filtration (with sand and gravel JUST LIKE GROUNDWATER!!!) and disinfection (usually with chlorine) to kill out any remaining bacteria.
Our Driving Question, "Where does our clean water come from and where does it go once we make it dirty, is totally making sense! We've got two last stops still, though...
There's this mystery sewer pipe we don't know a lot about still...
And we're thinking that freshwater is really, really important, we should think about ways to conserve it and protect it! We've got some engineering to do!
The water purification process starts out in the cribs and eventually ends up in our homes, clean enough to drink. Since some of the values we tested decreased, we knew things had to be removed from Lake Michigan. Other values increased, which meant things were added!
In order to remove things, we figured out about coagulation (making particles stickier and ultimately bigger so they could sink and/or get trapped), filtration (with sand and gravel JUST LIKE GROUNDWATER!!!) and disinfection (usually with chlorine) to kill out any remaining bacteria.
Our Driving Question, "Where does our clean water come from and where does it go once we make it dirty, is totally making sense! We've got two last stops still, though...
There's this mystery sewer pipe we don't know a lot about still...
And we're thinking that freshwater is really, really important, we should think about ways to conserve it and protect it! We've got some engineering to do!