Unit 7: Acute Triangle Trigonometry (5 days + 1 jazz day ...

Dissolved oxygen meters cost hundreds of dollars, so this project will use the chemical testing method. You can buy a dissolved oxygen test kit for around $50. The kit will test 100 water samples. Commercial test kits are based on the "modified Winkler method." You can read more details on this method in the Bales and Gutmann reference in the Bibliography, but here is a basic outline of how ... ................
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