SC-364
Diffusion
Lower Sec Science · Secondary 1 · Medium · Diffusion
A drop of perfume is sprayed at one corner of a room. After a while, a student at the other corner can smell it. Which statement best explains this using the idea of diffusion?
- Perfume particles are carried only by air currents in one direction.
- Perfume particles move randomly and spread from high to low concentration.
- Perfume particles become heavier and sink to the floor.
- Perfume particles stop moving once they mix with air.
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