1.Ink
-Hot water: When the temperature of the surrounding liquid is high, the particles in the ink move quickly and spread more easily.
-Cold water: In cold water, the movement of the particles slows down and you cannot see the spreading out quickly.
2. Coffee powder
-Hot water: When the liquid temperature around it is high, the coffee particles become more active and diffuse better.
-Cold water: When the temperature of the surrounding liquid is low, the motion becomes dull, which slows the diffusion.
3. Ink
-Hot water: When the temperature of the surrounding liquid is high, the ink particles become more active and diffuse faster.
-Cold water: Ink is a relatively heavy particle, so diffusion is slower when the liquid temperature is low.
4.Water-based paint
-Hot water: When the liquid temperature around it is high, the movement of the water-based paint particles is active and spreads faster.
-Cold water: The diffusion is slower when the ambient liquid temperature is low.