1. 1. To test for the presence of Starch
Place 2ml of starch solution in a test tube
Add a few drops of iodine solution using a dropper
Shake the test tube and note any colour change
Repeat the experiment with different samples

2. Sample
Observation
Starch solution
Sugar solution

3. 2. To test for the presence of Glucose
Set up a boiling water bath
Place 2ml of glucose solution into a test tube
Add a 2ml of Benedict’s solution
Place the test tube in the boiling water bath for 3mins
Note any colour change
Repeat the experiment with different samples

4. Sample
Observation
Glucose solution
Salt solution

5. 3. To test for the presence of Protein
Place 2ml of milk into a test tube
Add a 2ml of sodium hydroxide solution to the milk
Add a few drops of 1% copper sulphate solution
Shake the test tube
Note any colour change
Repeat the experiment with different samples

6. Sample
Observation
Milk
Sugar solution

7. 4. To test for the presence of Fats
Rub a piece of food onto a corner of brown paper
Rub some water onto another corner of brown paper
Allow the paper to dry
See if there is a see-through spot and record result
Repeat the experiment with different samples

8. Sample
Observation
Butter
Water