Remember the time in science class when you did that experiment with litmus paper and it turned red when you put it on a lemon and blue in soapy water? That was probably your first experiment into the ...

The power of hydrogen is not often discussed among gardeners unless you are a chemist. Commonly known as pH, it measures of the number of hydrogen and hydroxyl ions in the soils. But enough with the ...

Vinegar’s pH is low, meaning it’s acidic, but it can change if additional ingredients are added. If you dilute vinegar with water, its acidity lessens, making its pH level rise. The pH level of a ...