Polymers are ____ that can occur naturally or be man made. ____ are very long molecules made up from ____ molecules called ____. Natural polymers are made by ____ or animals, an example of a natural polymer is ____. Synthetic polymers are "man"-made from ____ and are used for lots of different things. All ____ are synthetic polymers. A ____ is one where numerous polymers are linked together to form a three-dimensional ____ . One ____ for engineering these types of ____ is they do not naturally ____.

Polymers gap fill

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