Plastic Tide Lesson 1 Part 2 Vocab

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Natural Resource

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A material or substance found in nature and used by humans.

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Non-Biodegradable

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A substance that cannot be broken down by microorganisms.

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Polymer

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A chain of linked molecules composed of a large number of repeating groups of atoms.

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Polymerization

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The process of rearranging small molecules to form larger, repeating chains of molecules that create a type of material called a polymer.

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Pure Substance

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A substance that has a constant composition and arrangement—that is, a substance that only contains one type of atom (such as carbon) or has different atoms arranged in a regular way (such as table salt).

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Scale

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Extent or size.

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Structure

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The arrangement of the parts of something, such as the stem of a plant or the atoms of a molecule.

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Synthetic

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Any substance made by humans by mixing or reacting natural materials together to form a new material.

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Extended Structure

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A long chain of, sometimes, thousands of molecules.