Kia ora.
Aim: Is to separate colours by using the processes of Chromatography.
Materials:
1. Paper strip (Chromatography paper).
2. Felt pens
3. Ruler
4. Water
5. Test tube rack
First we get paper strips and measure 1 Cm then draw a reasonable sized dot on the paper next we get a test tube and fill the bottom with water now put the test tube in a test tube rack and put half of the dot in the water fold the top of the paper over the edge of the test tube and watch it expand.
The colour that changed the most was Blue .
I can see nine new colours.
The colour that travelled the furthest was Blue.
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