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AQ LS 1 and 2 Vocab
AQ LS 1 and 2 Vocabulary
Term | Definition |
---|---|
Qualitative Data | In statistics and quantitative research methodology, levels of measurement or scales of measure are types of data that arise in the theory of scale types developed by the psychologist Stanley Smith Stevens. The types are nominal, ordinal, interval, and ra |
Quantitative Data | In statistics and quantitative research methodology, levels of measurement or scales of measure are types of data that arise in the theory of scale types developed by the psychologist Stanley Smith Stevens. The types are nominal, ordinal, interval, and ra |
Atom | the basic unit of a chemical element. |
Molecule | a group of atoms bonded together, representing the smallest fundamental unit of a chemical compound that can take part in a chemical reaction. |
Compound | a thing that is composed of two or more separate elements; a mixture. |
Pure substance | In chemistry, a chemical substance is a form of matter that has constant chemical composition and characteristic properties. It cannot be separated into components by physical separation methods, i.e. without breaking chemical bonds. It can be solid, liqu |
Physical change | a change from one state (solid or liquid or gas) to another without a change in chemical composition. |
Chemical change | any process determined by the atomic and molecular composition and structure of the substances involved |
Photosynthesis | the process by which green plants and some other organisms use sunlight to synthesize foods from carbon dioxide and water. Photosynthesis in plants generally involves the green pigment chlorophyll and generates oxygen as a byproduct. |
Matter | physical substance in general, as distinct from mind and spirit; (in physics) that which occupies space and possesses rest mass, esp. as distinct from energy. |
Pollutant | a substance that pollutes something, esp. water or the atmosphere. |
Volume | the amount of space that a substance or object occupies, or that is enclosed within a container, esp. when great. |
Mass | a coherent, typically large body of matter with no definite shape. |