Observing Diffusion - Matter

Aim: To observe diffusion in a liquid.


Equipment: Petri dish, Water, Tweezers, A crystal of potassium permanganate.

Method: 
1. Half fill your petri dish on your workbench and allow the water to become settled.

2.Place the Petri dish on your workbench and allow the water to become settled.

3. Using the tweezers, place a single crystal of potassium permanganate in the centre of the petri dish.

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4. Observe 4 minutes

5. Repeat the experiment using hot water.

Results and Discussion:
We had 4 minutes to see what the reaction was to the potassium permanganate in hot and cold water. These are the results :
Cold Water: The potassium permanganate spread very slowly across the petri dish.
Hot Water: The potassium permanganate spread faster across the petri dish in hot water than cold water.

Conclusion:
In this experiment, we were observing diffusion in liquid.  This experiment went really well. In conclusion, the potassium permanganate spread faster around the petri dish than in cold water.