| Skill | Definition | Example |
| Identifying and Controlling Variables | Being able to identify variables (recognizing the characteristics of objects or factors in events) that are constant or change under different conditions, AND that can affect an experimental outcome keeping most constant while manipulating only one (the independent) variable. | Listing or describing the factors that are thought to, or would, influence the rate at which an ice cube melts in air or water |
| Defining Operationally | Stating how to measure a variable in an experiment, defining the variable according to the actions or operations to be performed on or with it | Stating that bean growth will be defined as the amount of change in height as measured from the top of the soil to the tip of the longest stem in centimeters per week |
| Formulating Hypotheses | Stating or constructing a statement, that is tentative or testable, about what is thought to be the expected outcome of an experiment (based on reasoning | Making a statement to be used as the basis for an experiment; "if one ice cube is placed in cool water and an identical cube is placed in warm water, then the cube in the warmer water will melt first, or the greater the amount of organic matter added to the soil, the greater the amount the bean growth |
| Recording and Interpreting | Collecting bits of information about objects and events that illustrate a specific situation; organizing and analyzing data that have been obtained and drawing conclusions from it by determining apparent patterns or relationships in the data | Recording data from an experiment and forming a conclusion that relates trends in data to variables; studying a graph of data collected relating variables and determining a relationship between the variables |
| Experimenting | Being able to conduct an experiment, including asking an appropriate question, stating an hypothesis, identifying and controlling variables, operationally defining those variables, designing a "fair" experiment, conducting the experiment, and interpreting the results of an experiment | The entire process of conducting an experiment to determine the relation between soil conditions and plant growth, population and pollution, etc |
| Formulating Models | Creating a mental or physical model of a process, object or event | Drawing a diagram; producing a picture that illustrates information about ice cube melting; writing to describe how the process of evaporation and condensation inter-relate in the water cycle, illustrating by analogy |
| Making Decisions | Identifying alternatives and choosing a course of action from among the alternatives after basing the judgment for the selection on justifiable reasons | Identifying alternative ways to store ice cuvbes to avoid causing them to melt; analyzing the consequences of each alternative such as the cost, the effect on other people or on the environment; using justifiable reasons as the basis for making the decision; choosing freely from the alternatives http://131.156.85.98/~scienceed/p493/inteproc.HTML |