The pH scale is used to measure the acidity of a fluid. The pH scale ranges from 0 to 14. A pH of 7 is neutral, whereas a pH result below 7 is acidic and above 7 is alkaline. Urine has the widest ...

Note: This video is designed to help the teacher better understand the lesson and is NOT intended to be shown to students. It includes observations and conclusions that students are meant to make on ...

NOVEMBER IS THE perfect time to spend a few minutes preparing the vegetable garden for next spring. And one of the most important, but often overlooked, aspects of soil care is pH management. Although ...