a record or narrative description of past events. a history of France; he gave an inaccurate account of the plot to kill the president; the story of exposure to lead. report, news report, story, account, write up (noun).
1 Responding (or Dependent) Variable: This is the variable that changes as a result of the changes in the manipulated variable. 2  In our fertilizer example, the responding variable would be the size of the plants. 3  Controlled Variables (or Controls): These are all the things that you will keep the same in your experiment. Responding (or Dependent) Variable: This is the variable that changes as a result of the changes in the manipulated variable. 2  In our fertilizer example, the responding variable would be the size of the plants. 3  Controlled Variables (or Controls): These are all the things that you will keep the same in your experiment.
variable. anything you can change or control in an experiment. Common examples include temperature, duration of the experiment, composition of a material, amount of light, etc. There are three kinds of variables in an experiment: controlled variables, independent variables and dependent variables.ontrolled variables, sometimes called constant variables. variables that are kept constant or unchanging. For example, if you are doing an experiment measuring the fizz released from different types of soda, you might control the size of the container so that all brands of soda would be in 12-oz cans.