How well do you remember the pH scale from chemistry class? Today’s Google Doodle presents a small interactive to jog your memory, and more importantly, celebrate Søren Peder Lauritz Sørensen, the ...

The pH scale that is widely accepted and used by scientists didn't actually exist until 1909. Before then scientists had to rely on using adjectives to describe the acidity or basicity of a substance ...

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 ...

Ongoing discussion about the potential effects of ocean acidification on deep-sea corals has me wondering about the case of acid rain in North American lakes. This is something we understand much ...

Purdue Extension Educators frequently encourage homeowners to get soil tests when they want to grow new plants in an area, or try to diagnose what’s wrong with plants currently growing. One key ...

CORVALLIS – Often not considered, soil pH has as much effect on plant health as disease, insects, drought and drainage. Keeping pH in the right range for certain plants is essential, according to ...

Figure 1: Soil pH at 0.5 m depth versus annual water balance. Figure 2: Outliers from the global relationship between pH and MAP minus PET. By assuming a threshold between CaCO 3-buffered and Al(OH) 3 ...