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Thursday 28 March 2019

Chromatography - Extension

Extension:

What is another experiment you could do using chromatography and how would you do it.

Title; 

Marker Chromatography
Aim: 

To separate colours to make a beautiful design.  
Materials:

  • chromatography paper or coffee filters
  • washable markers
  • wooden craft stick
  • binder clip
  • jar with an inch or two of water in the bottom
  • paper towel
  • pipe cleaners
Process:

Draw a design on the chromatography paper.

Fold the paper in half and half again until it is narrow enough to fit inside your jar.

Place a craft stick at the top of the wedge of paper. Attach a binder clip to the paper and the craft stick.

Place the paper in the jar of water (suspended by the craft stick) so that only just the tip of the end is touching the water.

Watch as the paper draws water up from the jar. You will start to see the colours separate and spread!

When the water line reaches the top of the paper, pull it out, unfold it, and let it dry on a paper towel.

Once the paper is dry you can display it as ­is or fold it into a butterfly, a gift bag, or a beautiful flower!

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