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AQ 1-2 Vocab
Term | Definition |
---|---|
Matter | anything that takes up space |
Pollutant | a substance that can make air,soil,or water harmful to organisms and structures |
Volume | a measure of how much space something takes up |
Mass | the amount of stuff something contains |
Atom | the basic building block of matter |
Molecule | a combination of two or more atoms |
Compound | a pure subsistence made up of two or more elements |
Pure Substance | a type of matter composed of a single type of particle and always has a distinct,predictable properties |
Physical Change | a change in the form or appearance of matter, but not its composition |
Chemical Change | a change in the composition |
Photosynthesis | the process through which green plants use the energy of sunlight to make food and oxygen |
Qualitative | when words are used in data |
Quantitative | when numbers are used in data |