Chromatography & Skittles

Aim: To separate colours by using the process of chromatography.

Definition: A technique for separating the different parts of a mixture / solid using liquid.

Rainbow paper

Materials;

1. Filter paper

2. Felt pens

3. Paper cup

4. Water

5. Pencil

6. Ruler  

Process:

Step 1: First draw a 1 cm line on your paper then a 2 cm line on your paper.

Step 2: Next draw a circle with all three of your felts on the 1 cm line.

Step 3: Then fold the paper on the 2 cm line and place the paper on the edge.

Step 4: After that pour the water into the cup so that the 1 cm line and down is covered in water.

Step 5: Watch the colours and the water dissolve up the paper.

Findings: Write about what happened.

We found out that if you have the colours black, red and green you can see the reaction they make on the filter paper with water.

Reflection: What have I learnt from this experiment?

I learnt that water and felts are more interesting than you think.

Skittles

Aim: To separate colours by using the process of chromatography.

Materials;

1. Petrie Dish
2. Skittles
3. Water

Process:

Step 1: Get your petrie dish and your skittles
Step 2: Put your skittles in your dish
Step 3: Spread you skittles out the pour your water in the dish
Step 4: Watch the colour from the skittles turn into a pie shape

Findings: Write about what happened.
The skittles made a water colour explosion to make a pie of colours.Reflection: What have I learnt from this experiment?

I learnt that skittles are not just a delicious treat.
What did the colours do?

Escape from the skittles and melted together.Did the colours mix together?

Yes

Why or why not?

Because the water and the food die mixed together