Everyday Science
Why do wet footprints disappear?
Because water spreads out and evaporates into the air. Thin water on the ground turns into invisible water vapour. Warmth, wind and dry air make footprints fade faster.
Everyday Science
Because water spreads out and evaporates into the air. Thin water on the ground turns into invisible water vapour. Warmth, wind and dry air make footprints fade faster.