How can I perform a pH test at home to determine the acidity or alkalinity of a substance?

To perform a pH test at home, you can use pH test strips or a pH meter. Dip the test strip into the substance or place a few drops of the substance on the strip. Match the color of the strip to the provided chart to determine the pH level. With a pH meter, immerse the electrode into the substance and read the pH level displayed on the meter.