To make your own indicator, you will need: Red cabbage A kettle and water Household substances to test, such as lemonade ... Use the colour comparison chart to find the pH of your substances.

Observe the color of the indicator and record any color change(s) in the chart. Laundry detergent turns the ... left shows the amount of chlorine in the water. This test for chlorine is not a pH test ...

How To Test Soil pH With a Kit ... then comparing the results to a chart. Depending on the type of kit, there may be other ...