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Science
matter | |
---|---|
matter | anything that has volume and takes up space |
pollutant | substance that can make air,soil, or water harmful to organisms and structures |
volume | measure of how much space something takes up |
mass | amount of stuff something contains |
atom | basic building block of matter |
molecule | combination of two or more atoms |
compound | pure substance made up of two or more different elements |
pure substance | type of matter composed of a single type of particle and always has distinct predictable properties |
physical change | change in the form or appearance of matter but not its composition |
chemical change | change in the composition or chemical make up of a sample of matter chemical change is also known as a chemical reaction |
photosynthesis | process through which green plants use the energy of sunlight to make food and oxygen |
qualitative data | written word data |
quantitative data | data of numbers and statistics |