Material

There is a lot of materials but today the only material that I am going to talk about is plastic.Plastic is a man-made material.It is made from an oil that is called petroleum.Plastic is also produced from the crude oil.

Plastic is a light and flexible material.It does break easily when you dropped it.Some plastic is disposable.Plastic are flexible as when you use finished something,you do not need to wash it.What you need to do is just to throw it into the rubbish bin.They are waterproof as it can use to raincoats.Some plastic can also be seen through.Plastic is easily damaged by heat.When burnt,Plastic released harmful gases into the atmosphere.

Plastic are safe for children as children are always very careless so we need plastic to help us as it does not break easily.Plastic can only float on water when there is air inside.