| A | B |
| Scientific observation | a statement that is made by describing properties using the five senses or scientific tools. |
| Inference | an explanation of an observation based on prior experiences. |
| Qualitative observation | scientific observations that are made using only the senses and refer to specific properties. |
| Quantitative observation | scientific observations that use numbers (amounts) or measurements (including the unit label) or that make relative comparisons, such as more than, all, less than, few, or none. |
| Asexual reproduction | a reproductive process that involves only one parent and produces offspring that is identical to the parent. |
| Autotroph | an organism that provides its own food for energy through the process of photosynthesis. |
| Growth | the process whereby the organism becomes larger. |
| Heterotroph | an organism that must find an external source for food (eats other organisms). |
| Multicellular | an organism that is made up of many cells. |
| Sexual reproduction | a reproductive process that involves two parents and produces offspring that is different from both parents. |
| Unicellular | an organism that is made up of only one cell. |
| Development | the process that occurs in the life of the organism that results in the organism becoming more complex structurally. |
| Conclusion | a summary of the findings of an experiment based on scientific observations, inferences, and collected data. |
| Controlled scientific investigation | an experiment in which an observer tests a hypothesis by looking for changes in the dependent variable. |
| Controlled variables | those things which you keep the same, or constant, in an experiment. |
| Dependent (responding) variable | the thing that you measure or observe in an experiment. |
| Hypothesis | an educated guess about the outcome of a controlled scientific investigation. |
| Independent (manipulated) variable | the thing that you change or make different in an experiment. |
| Data table | a representation of data collected in an experiment, usually organized in tables and rows. |
| Diagram | a visual representation that identifies specific parts, a sequence of events, or how things are alike and different. |
| Dichotomous key | a special identification key that uses a series of paired characteristics that leads to the identification of an organism, object, or material. |
| Graph | a visual representation that is used to compare data. |
| Scientific model | an idea that allows us to create explanations of how something may work. |
| Kingdom | the highest classification into which living organisms are grouped. |
| Response | an organism’s reaction to a stimulus. |
| Scientific name | a two-part name given for an organism which is made up of its genus and species. |
| Species | organisms of the same type which are able to breed and produce young of the same kind. |
| Stimulus | any change in an organism’s surroundings that will cause the organism to react. |