Diffusion

Diffusion: Diffusion is the movement of a substance from an area of high construction to the area of low construction.


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 workbench and allow the water to become settled.
3. Using the tweezers, place a single crystal of potassium permanganate in the center of the petri dish.
4. observe for 5 minutes.
5. Repeat the experiment using hot water.

Result:

In cold water: Diffused slower 

In warm water: Diffused faster 


Discussion: hot diffused faster and heat of the water made the particles break apart faster, and because cold is thicker it made the particles break apart slower.