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AQ 1-2 vocab
Term | Definition |
---|---|
Matter | substance that has mass |
Pollutant | substance that pollutes air. |
Volume | the space that a substance occupies |
Mass | Large portion of matter with no definite shape. |
Atom | basic unit of chemical element |
Molecule | A group of atoms that are bounded together. |
Compound | A mixture |
Pure substance | it is a form of matter that cannot be separated into components. |
Physical change | Also known as the phase change, it can be changed from solid, liquid or a gas making a chemical reaction. |
Chemical change | Atomic and molecular process and structure of substances involved. |
Photosynthesis | Process used by plants and other living organism. |
Qualitative data | Data that is descriptive |
Quantitative data | Data that is numerical |