Now that we KNOW the water in Lake Michigan is different than the water in our tap, we developed initial models for what exactly is going on in that building! We're trying to put ideas together over time...knowing a few things:
1. Some of the substances we detected in water were added.
2. Others were removed.
3. All of these substances are dissolved--we did NOT see them at all in either the water sample from the lake or the water sample from the faucet.
We're putting these ideas out there in developing our initial models. We're seeing if we can develop a model that PREDICTS, based on scientific knowledge we've developed over time.
Check out some of the 5th grade initial models of what happens at the purification plant! We have some competing ideas on how dissolved substances are added: microbes, chemicals, filters, screens, earth materials, machines, people...
We can't wait to figure this out!
1. Some of the substances we detected in water were added.
2. Others were removed.
3. All of these substances are dissolved--we did NOT see them at all in either the water sample from the lake or the water sample from the faucet.
We're putting these ideas out there in developing our initial models. We're seeing if we can develop a model that PREDICTS, based on scientific knowledge we've developed over time.
Check out some of the 5th grade initial models of what happens at the purification plant! We have some competing ideas on how dissolved substances are added: microbes, chemicals, filters, screens, earth materials, machines, people...
We can't wait to figure this out!
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