Up to twelve percent of children have diagnosed or undiagnosed auditory processing disorder, a condition that inhibits the brainâs ability to translate and process sounds.
Magnesium is sometimes used in flares and flashbulbs because it  burns with a bright white light.
Mercury is a silvery-white poisonous metallic element. Mercury is liquid at room temperature and used in thermometers, barometers, fluorescent lighting, batteries and in the preparation of chemical pesticides. Mercury is also sometimes called quicksilver or liquid silver.