Place the Universal Indicator pH Color Chart in front of the spot plate. Use your dropper to add 1 drop of citric acid solution to the second well. Gently mix the liquid with a clean toothpick.

If only she'd known the trick I'm going to tell you, she could have turned her hydrangeas pink—a color that goes so much ...

Color has been an intense topic of interest for thousands of years. Mathematicians, philosophers, physicists, physiologists, poets, and other disciplines have all contributed to our understanding of ...

The Master of Science and Ph.D. color science degrees explore all aspects of color, from lighting, through material properties, to human perception, and are closely associated with the Munsell Color ...