Plastic artricles are available in all possible shape and sizes.why
Answers
Answer:
Plastic articles are available in all shapes and sizes because plastic is considered to be a different material as it becomes soft on heating and becomes hard when cooled to lower temperatures. ... Since liquid has the tendency to take the shape of the container, the molten plastic is poured into different vessels..
Explanation:
Plastic means 'shapeable'. When they are first made these substances are soft enough to be squeezed out like toothpaste, flow into moulds with intricate shapes, rolled into thin sheets and be stamped into shapes like trays. When they cool they set in the new shape.
Some set permanently and these are thermosetting substances such as we use for worktops. Others regain their plasticity when they are reheated carefully and we call them thermoplastics. Polythene is a familiar thermoplastic.