SC-393
Diffusion
Lower Sec Science · Secondary 1 · Hard · Diffusion
A student places a drop of blue ink in the centre of a beaker of still water. After 10 minutes, the whole beaker of water is light blue. Using diffusion, why did this happen?
- Ink particles move randomly from high to low concentration until evenly spread.
- Water particles pull the ink downwards by gravity only.
- Ink particles are too heavy to stay in one place, so they sink.
- The beaker heats up, causing the ink to boil and mix.
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