Silver
water
What cause finger to turn blue
An element called Dolomite can turn anything black.
Red color in acidic solutions and blue color in basic solutions.
A coloured contact lens.
Extreme Heat
There could be several reasons for the saliva to be blue. There could be a lack of oxygen that would cause the tongue and the saliva to turn blue. Another reason could be that something blue was eaten, such as a sucker, popsicle, or fruit snacks.
Yes, it rots your skin and can cause you to turn blue (Or the color of the polish).
The amount of time that it takes to turn blue from not breathing varies depending on the cause. However, as soon as someone stops breathing you should seek medical assistance.
Because the colour of the blood vessels that cause your eyes to turn red are red.
Bleaching light blue material can cause it to turn white or a lighter shade of blue, depending on the fabric composition and bleach concentration. It is important to follow the care instructions for the specific material to avoid damaging it during the bleaching process.
The red litmus paper dipped into household ammonia will turn blue. This is because ammonia is a base and reacts with the acidic red litmus paper, causing it to change color to blue.