Chemistry+Investigation

Recall: when looking for information: you can access Science Journals through EPIC on tki.org.nz. The school username and password is in your school diaries. Make sure you keep a reference list in your logbook of where your information comes from. Search the ProQuest Science Journals on Epic.

Options: 1. Vitamin C content

2. Dissolved Oxygen. CHeck out the following online resources and readings to help you gain an understanding. Remember: **everything** that you read must be processed, (glued in your log book, highlighted and notes all over it) for evidence!

[|Water Quality] [|Dissolved oxygen and Biochemical Oxygen Demand] - also discusses the Winkler Method and collection of samples in detail.

[|The Winkler Method] - report on measuring DO in aquatic environments by 3 techniques.