Procedures
- Gather materials
- Collect 20 ml of water samples from various sources around Olympia High School, and private homes.
- Set up the pH tester
- Calibrate the pH tester by following the instructions in the box.
- Clean the the tester and pat dry
- Place sample in glass
- Place tester in water sample
- Let stand for 3 minutes
- Record the pH measurement that is displayed on the tester
- Reset the tester for each test by washing with water and drying pat dry and pouring out the sample.
- Repeat steps 5-11 for each sample doing three tests for each location
- Analyze the data for any patterns