A pH meter measures a pH or the acidity/alkalinity of substances. Most pH meters rely on a glass electrode that measures the number of hydrogen ions in the solution. Usually, pH meters need to be ...

In addition to pH, voltage and temperature measurement, the 780 pH Meter also offers an automatic stirrer control, a multi-point calibration with up to nine buffers, a method memory and various ...

The color of hydrangea flowers can change from pink to purple and blue by tweaking the soil. How do other plants react to those changes? Sydney Kozak explored just that. Her project, “Does changing ...

The hardy cannabis plant can adapt to a lot of soil types and many successful crops have been harvested without ever paying attention to pH, but it never hurts to check. When growing plants in soil, ...

We may receive a commission on purchases made from links. A proper soil pH is key to the success of your garden, with most plants enjoying a soil with a pH between 6.2 and 6.8. While you could use ...