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science-meganm012
science vocabulary
Term | Definition |
---|---|
matter | anything that takes up space |
solid | tightly packed molecules |
liquid | loosely packed molecules |
gas | very loosely packed molecules |
mass | amount of matter in an object usally measured as weighing |
volume | amount of space an object or substance takes up |
physical change | a change in the size, shape, or phase of matter, without the matter changing chemically |
chemical change | the processs by which a certain substance becomes a different substance |
photosynthesis | process of plants producing energy,oxygen, and water by taking in carbon dioxide, water, and the suns energy |
chemical property | a way to describe how matter reacts with other matter |
chemical reaction | a chemical change in which one or more substances is changed |