BI-1680
Diffusion
Biology · Secondary 4 · Easy · Diffusion
A student investigates diffusion using a beaker of water and a drop of blue dye placed gently at the bottom.
Which observation best shows that diffusion has occurred?
Which observation best shows that diffusion has occurred?
- The blue colour slowly spreads until the whole beaker is light blue.
- The blue colour stays as a small spot at the bottom of the beaker.
- The blue colour rises to the top and forms a dark layer only at the surface.
- The blue colour disappears completely from the beaker.
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