The independent variable in turning milk into plastic would be the process or conditions under which the milk is treated or transformed. The dependent variable would be the resulting properties of the plastic formed from the milk, such as its strength, durability, or other characteristics.
It is much easier to make plastic from petroleum than from milk, just as it is much easier to make ice cream from milk, than from petroleum.
Casein plastic was discovered by German inventor Adolph Spitteler in the early 20th century. Casein, a protein found in milk, can be mixed with formaldehyde to create a plastic-like material that can be molded into various shapes and objects.
One hypothesis is that by adding an acid such as vinegar to milk, the protein casein will separate from the liquid whey. Then by drying and shaping the casein, a plastic-like material can be formed. Another hypothesis could be that by heating and compressing the separated casein, it can undergo polymerization to form a solid plastic material.
The aim is the goal of the experiment, for example, you may be turning milk into plastic. So the aim is to turn milk into plastic. The hypothesis is what you THINK will happen. So you might think that the milk will turn into a substance quite unlike plastic. So the aim can be quite different to a hypothesis, or very similar!
the milk will harden and make plastic
Milk plastic is a biodegradable plastic made from casein protein found in milk while normal plastic is made from petrochemicals. Milk plastic is more environmentally friendly as it is biodegradable, whereas normal plastic is not easily biodegradable and contributes to plastic pollution. Milk plastic has a shorter life span compared to normal plastic but is a better alternative for single-use or short-term applications.
Milk bottles have clouded plastic because that type of plastic is stronger than others.
A hypothesis for plastic milk could be: "If plastic milk packaging is replaced with a more sustainable alternative, then it will reduce plastic pollution and lead to environmental benefits."
yes you can make plastic out of milk and vinegar
Milk turning sour is a chemical change. It occurs due to the fermentation of milk sugars by bacteria, leading to the production of lactic acid, which changes the taste and smell of the milk.
No, milk turning sour is a chemical change because the bacteria in the milk interact with the lactose to produce lactic acid, changing the composition of the milk.