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AQ 1-2 Vocab
Term | Definition |
---|---|
Matter | Anything that has volume (takes up space) and has mass |
Pollutant | A substance that can make air,soil or water harmful to organisms and structures |
Mass | The amount of "stuff" something contains |
Volume | A measurement of how much space something takesup |
Atom | The basic building block of matter |
Molecule | A combination of 2 or more atoms |
Compound | A pure substance made up of two or more elements |
Pure Substance | A type of matter composed of a single type of particle and always has distinct,predictable properties |
Physical Change | A change in the form of appearance of matter, but not in its composition |
Chemical Change | A change in the composition , or chemical makeup, of a sample of matter. A chemical change is also known as a chemical reaction |
Photosynthesis | The process through which green plants use the energy of sunlight to make food and oxygen |
Qualitative Data | Data that is expressed in description |
Quantitative Data | Data that is expressed with numbers |