Science · Topic 99 of 124
Diffusion
⭐ MasteredDiffusion is the movement of particles from an area where there are many of them to an area where there are fewer. Perfume spreads across a room through diffusion.
💡 Fun fact
Diffusion is why a drop of food colouring slowly spreads out through a glass of water.
All about Diffusion
Diffusion is the movement of particles from an area where there are many of them to an area where there are fewer. It happens in liquids and gases, and the particles keep moving until they are spread evenly. Diffusion does not need any energy from outside.
Perfume spreads across a room through diffusion, which is why you can smell it from a distance. A drop of food colouring slowly spreads through a glass of water in the same way.
🎮 Try it yourself!
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