The melting point of chocolate is 30'C, whereas the melting point of plastic is around 200'C. Why is it so much higher than chocolate?

How are fossil fuels made and how long does it take?

2 properties of rubber.

What do you call it when you put monomers together?

3 ways of disposing of waste like plastic is melting it, binning it or recycling it. Which one is worst for the environment and why?

High density?

Low density?

Natural polymers?

Man-Made polymers?

What is crude oil?

Fractional Distillation?

what are refineries?

Why is crude oil of little use without refining it?

Polymers?

Polythene?

Monomers?

Polythene or poly(ethane) is formed by an...