What we did in this unit is that we did in the lab. We first stated making our eco-columns we started with the aquarium but first before that we had to cut three bottles. Then put water in the bottles (don't try it the are hard to make in the way you need the bottles to be cut in a weird way.) Then we put in the water, gravle, duckweed, muck, eldoea, snails and then thats it.
I learned that the pH scale is inportant if it is to low it's kills all sorts of stuff and if it's high like 9 or 12 which is super high. If it's 7 or 6 it is good for fish. High or low it kills animals in eggs. So we want to help the Puget Sound and keep it at 7 which is better for animals then 6.
Now do you know more about the pH scale?
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