| A | B |
|---|
| molecule | smallest particle of a compound |
| chemical formula | a short way of describing a chemcial compound |
| chemical reaction | when 1 or more substances change to form one or more new substances |
| reactants | substance that goes through change in a chemical reaction; found on the left side of the equations |
| chemical equation | way of describing a chemical reaction using formulas |
| law of conseravation of mass | states that matter can neither be created nor destroyed |
| element | pure substance found in nature; made up of only one kind of atom |
| compound | two or more elements that are chemically combined |
| carbon-based | means that most of the compounds of living organisms are made of contain the element carbon |
| fermentation | process that gives off energy without using oxygen |
| aerobic respiration | respiration that uses oxygen to release energy |
| anaerobic respiration | respiration that does not use oxygen to realease energy |
| organism | a living thing |
| cell | smallest unit of an organsim that carries the functions of life |
| unicellular | one celled organism, including bacteri |
| multi-cellular | organisms composed of two or more cells |
| development | the process of change tht occurs during an organism's life to produce a more complex organism |
| stimulus | a change ni the organism's surrounding that cuases the organism to react |
| response | an action or change in behavior |
| reproduce | to produce offspring that are similar to the parents |
| metabolism | all the chemical activities going on in living things |
