BI-1663
Diffusion
Biology · Secondary 4 · Hard · Diffusion
A student investigates diffusion using a beaker of water and a drop of blue dye placed gently at the bottom. After 20 minutes, the whole beaker is light blue.
Which statement explains this observation?
Which statement explains this observation?
- Water molecules move from low to high water potential.
- Dye particles move from high to low concentration.
- Dye particles move only when stirred.
- Water molecules carry dye particles upwards by active transport.
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