The definition of
PH : PH is a numeric scale which measur
the activity of hydrogen ion. The PH scale range is from 0 to 14, used to specify the Acidity or Basicity of an
ph=7 represents a neutral solution, lower numbres indicate
increasing Acidity and higher numbers indicate increasing Basicity.
EPA (Environmental Protection Agency) maintains strict standards to appropriate
PH levels in drinking water: the PH levels must be within the range of 6.5 to 8.5 to fall within EPA standards,
assuming acidic or basic water is harmful.
The following video will show you the PH level of tap-water, taken by Moran Pearlstein at kibbutz Snir, Israel.
OUR question is : What is the PH level at your
home tap water ?
Add a point on the map which shows your home geographic location and write the PH value you measured at your home.
To answer this question you may
need a PH indicator, which you can purchase at any pet store that have products for aquariums.
For this course - Maya Usher has our kit and you can pick it up from her office at the Technion.