Niels Bohr was born and educated in Copenhagen, Denmark. He lived, worked, and died there, too. But his mark on science and history was worldwide. His professional work and personal convictions were part of the larger stories of the century.
Salivary pH Test: While generally more acidic than blood, salivary pH mirrors the blood (if not around meals) and is also a fairly good indicator of health. It tells us what the body retains. Salivary pH is a fair indicator of the health of the extracellular fluids and their alkaline mineral reserves.
Vocabulary anthocyanin acid alkaline base indicator pH solution universal indicator A universal indicator is a solution which undergoes several color changes over a wide range of pH's. The color is used to indicate pH directly. Universal indicators are usually mixtures of several indicators.