Title: Conduct a Qualitative Test for Protein

Materials/Equipment/Apparatus

• 2 boiling tubes
• Test tube rack
• Milk
• Water
• Biuret
• 2 droppers

Procedure/Method

1. Label two boiling tubes, one, A and the other, B and put them in a test tube rack
2. Place 2ml of milk into the tube containing milk
3. Place 2ml of water in the tube container water
4. Write down current colour of both tubes
5. Place 2ml of biuret into each tube
6. Swirl both tubes
7. Observe and write down colour changes

Safety/Risks

• Wear safety goggles
• Wear gloves

Labelled Diagram

Results

Results

Conclusion

We found out that when Biuret is added to protein it turns lilac! Protein is present in milk