SC-413
Diffusion
Lower Sec Science · Secondary 1 · Medium · Diffusion
A bottle of air freshener is sprayed at one corner of a classroom. After a short while, students at the opposite corner can smell it. Which statement best explains this observation?
- The scent particles are heavier than air and sink to the floor.
- The scent particles move randomly and spread out between air particles.
- The air currents push the scent particles in straight lines.
- The scent particles dissolve in air and stop moving.
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