Can You Get Plastic Out of Milk?

Prediction: I think the milk will fizz up and explode.

Equipment: 1 cup of milk, sieve, bowl, teaspoon, vinegar.

Method: 
1.    Put one cup of milk into bowl. 
2.    Warm up green milk in microwave for 50sec in an 800watt microwave. Blue milk needs to go in an 800watt microwave for 1min. 
3.    Add four teaspoons of vinegar to the milk. 
4.    Stir the mixture gently. 
5.    Strain the solution through the sieve. 
6.    Rinse and sieve the Casein.

Result: I made a substance that is crumbly and feels like squishy plastic. A vinegar smell is given off by the Casein which also has a white scrambled egg appearance. It sounds like heaps of little pops as you squish it. After a day it has a harder surface. It smells like vinegar and looks like dried up cheese. Now it does not make any noise when you squish it.

Conclusion: We made a substance called Casein (Latin word for cheese). Casein occurs when acid meets milk. The Casein in milk does not mix with acids so it forms blobs. The non-scientific word for Casein is Curd. Casein is used to make cheese. Whey is also used for ricotta, brown cheeses and animal feed.