Experiment 1

Preparations

Standards

1) Purchase food colouring that can be obtained from grocery stalls. Check the labels to ensure that they have the following chemicals in them:

- Brilliant Blue (BF)

- Carmoisine (C)

- Erythrosin (E)

- Ponceau (P)

-Sunset Yellow (SY)

-Tartrazine (T)

2) Put some of the colouring into separate containers to prevent contamination.

M&M Colouring

1) Purchase a packet of M&M and open it up.

2) Sort out the different colours of M&M.

3) Place the same-coloured M&M's into a small beaker and add 2-3 drops of water into it.

4) Keep stirring to extract the colouring. When the M&M colouring coat turns white, remove the M&M. Add another one and repeat this process. Notice that if the chocolate gets extracted, the solution is considered contaminated.

5) Put about 6-10 M&M's to concetrate the solution.

6) After that, place the solution into a small container.

Smarties Colouring

1) Purchase a packet of Smarties and open it up.

2) Sort out the different colours of Smarties.

3) Place the same-coloured Smarites into a small beaker and add 2-3 drops of water into it.

4) Keep stirring to extract the colouring. When the Smarties colouring coat turns white, remove the Smarties. Add another one and repeat this process. Notice that if the chocolate gets extracted, the solution is considered contaminated.

5) Put about 8-10 Smarties to concetrate the solution.

6) After that, place the solution into a small container

M&M Chromatography

Aim:
To investigate if the food dye used in M&M is legal to consume and is exactly as stated in the contents.

Hypothesis:
The more soluble the food dye in this solvent, the higher place it will come out on the chromatography paper.

Problem Statement:
Is the food dye used in M&M legal to consume and is the contents stated exactly?

Procedure:
1) Prepare a 14x14cm chromatography paper.
2) At the bottom of the paper, measure the length of 1.5cm height and draw a straight line from the beginning of the paper until the end. After that, start to measure 1cm from each side of the paper and draw a small line. Then start to measure 1.5cm each and draw a small line.
3) At the top of the paper, use a pencil (not pen or markers; only pencil) to write down the solvent that you are going to use. Then leave some space and below it write down the standards, the product’s name and the dye’s name of the product that you are going to use.
4) After that, extract all the food dye from the product, and put it in a small container.
5) Then use the tip of a wooden splinter to dip a little bit of liquid that is in the container and start to dip those food dye orderly on the small line (1.5cm each) that is drawn on the bottom of the chromatography paper.
6) After that, put the paper in the solvent that you are using for this experiment. The chromatography paper must be vertically straight. Make sure that the solvent just touch the bottom or below the food dye.
7) Leave it there until the solvent has almost reach ¾ height of the chromatography paper. Then take it out and let it dry.
8) You can try to do more same experiments so that you can compare the results. After observing, start to analyze your results and write reports.

Observation:
Blue colour is at the top of the chromatography paper. Followed by yellow and orange colour. Finally at the bottom of the paper is red colour.

(Observation)

Inference:

Variables:
1) Constant:
2) Manipulated:
3) Responding:

Conclusion:

Smarties Chromatography

Aim:

Hypothesis:

Problem Statement:

Procedure:
1)
2)
3)

Observation:

(Observation)

Inference:

Variables:
1) Constant:
2) Manipulated:
3) Responding:

Conclusion: