Chromotography is a technique for the separation of a mixture by passing it in solution or suspension through a medium in which the components move at different rates.
Aim: To separate the colours from the skittles by using chromatography.
Materials;
1. Skittles
2. Petri dish
3. Water
Method:
Step 1: Place skittles around the edge of the pertri dish
Step 2: Carefully put water into the middle of the dish.
Step 3: Watch to see which colours reach the middle first.
Findings:
Explain what happens to the colours? - The colours are starting to come out of the skittles.
Why do they bleed out at the same rate? -
Why do the colours not mix together? - The colours dont mix together because each food colouring has the same amount of sugar.
Green - 4
Yellow - 3
Orange - 4
Brown - 8
Red - 3
Conclusion:
In conclusion brown had reached the middle the most
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