Aim: To observe diffusion in a liquid.
Equipment: Petri Dish, Water, Tweezers, A crystal of Potassium Permanganate.
Method:
1. Half fill your petri dish with cold tap water.
2. Place the petri dish on your work bench 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.
4. Observe for 5 minutes.
5. Repeat the experiment using hot water
Observations:
Note: We only did cold water
The colour started getting a bit lighter over time with only two crystals.
Explanation: I guess the substance spreaded out through the whole petri dish and got less focus on one spot.
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