Rainbow Paper (Science class)

Kia ora readers.

Today I will be telling you about Rainbow paper we did in science class. This is where we all separate the colours from the mixture using a liquid. I've seen this before but let's try it anyways. We can work by ourself or with someone.

Here is the what we have to write.

Aim: To separate colours by using of chromatography

Definition: Chromatography is a method of separating out materials from a mixture using a liquid.

Materials: 

1. Boiling tube

2. Marker

3. Water

4. Special Paper

5. Scissors

6. Test Tube Stand

7. Ruler

8. Pencil 

Process:

Step 1: Cut up the filter paper in strips to write on the felt pens.

Step 2: Rule a line 1 crn from the bottom of the paper strip.

Step 3: Put about 8 ml of water into the bottom of the boiling tube.

Step 4: Put two coloured pen dots on the pencil line.

Step 5: Drop the paper strip into the boiling tube and once it touching the water at the bottom you can crease the top of the paper over.

Step 6: Watch, take 2 photos and observe.

Here is a photo of what I took.(My one turned into clear orange)

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