Equipment: Test tube, sodium hydroxide (NaOh), copper sulfate (CuSo), food sample.
Method: 1. Place about 2 ml of the sample into a test tube and add 5 drops of sodium hydroxide. 2. Add 5 drops of copper sulfate. 3. Shake the test tube gently.
Results: the colour changed witch showed protein.
Conclusion: there was protein in the egg.
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