Plastics Questions: Answers for Year 8 Students

[zap123]

Sorry to bother everyone
I want to ask a couple of questions that i am stuck on
What are plastics used for? What are some of their properties that make them so valuable as materal? what advantages does plastic have over traditional materials like wood, metal, stone, etc ? last one
Explain how to make plastic from milk?

COULD SOMEONE PLEASE HELP ME I KNOW THESE MAY BE EASY QUESTIONS BUT IM ONLY IN YEAR 8
PLEASE REPLY ASAP

 

[Plastic Photon]

What are some of their properties that make them so valuable as materal? what advantages does plastic have over traditional materials like wood, metal, stone, etc ?

Many are polymers and oil is available in large quantities and at a cheap extraction cost. 90% of oil is used for energy purposes and the other 10% on materials, though I can't say which % of that is used to make plastics. The demand for this energy based oil cuts downs on the cost of plastics.