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Turning Milk Into Plastic
5
Transcript
Question:
Can milk undergo changes to form a plastic?
Conclusion/Data
Hypothesis:
Yes I believe that if milk undergoes certain changes, it can be transformed into a plastic.
My hypothesis was correct and I was able to turn whole milk into plastic using household objects and appliances.
Turning Milk Into Plastic
Investigation/Background Information
- Milk contains a protein called Casein which is insoluble in any form of acid. When this protein is introduced to the white vinegar (which is acidic) it precipitates out. Plastic is formed when the Casein molecules precipitate out.
- Casein molecules are long chained molecules and they are very similar to the long chained polymers found in actual plastics. The only difference between the plastic that I created and the plastic found in stores is that mine has naturally occurring polymers while other plastics have synthetic polymers.
Materials
By: Devonte McLaurin
- Milk
- White Vinegar (8oz.)
- Frying Pan
- Oven
- Bowl
- Strainer
- Paper Towels
- Measuring Cup
- Spoon
Directions:
- Pour one cup of milk into the frying pan
- Set oven to lowest temperature
- Heat milk for about two minutes or until warm (do not let milk reach boiling point)
- Turn off oven and pour four teaspoons of white vinegar into the pan
- Mix until substance begins to clump together
- Pour the contents from the pan into the strainer
- Place white plastic clumps onto a paper towel to get unwanted moisture out
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