RAINBOW-PAPER
1. chromatography paper.
2. test tube.
3. put water in your test tube (20mls).
4. felt pens.(x5)
5. Test tube rack.
Process.
1. get a pec of chroatography paper.
2. get your test tube.
3.then put about (20ml) of water in your (x5) tast tubes.
4. get (x5) difference colurful pens.
5. fold about (15cm) of paper and draw a dot on the line.
6. a put the pec of paper in the test tube and make sure the dot is above the water.
7. and wait unil the colour suddenly changes colour.
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