Scientific Inquiry Component
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Created by:
biologyerath on April 29, 2012
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23 terms
Terms | Definitions |
|---|---|
 Independent variable | variable that is changed (manipulated) to see if it will cause an effect on a second variable; variable that "I" change (SI3) |
| Dependent variable | variable that is measured for change; data; the effected variable (SI3) |
| X- axis | axis in which the independent variable is found (SI4 &SI5) |
| Y-axis | axis in which the dependent variable is found (SI4 &SI5) |
| controlled variables | constants; variables that must be monitors and kept the same; these should not be allowed to interfere with the experiment (SI3) |
| Control group | comparison group; normal conditions are maintained and/or independent variable is not present; also called standards used to compare to(SI3 & SI16D) |
| Experimental group | testing group; group in which the independent variable is changed (SI3) |
| validity | multiple trials improves the ____ of an experiment by providing more data to support of refute the hypothesis (SI4& SI16) |
| hypothesis | statement that must state what the independent variable is and in what way it is expected to effect the dependent variable; prediction of the cause and effect relationship between X and Y (SI1) |
| opinion | biased statement; can never be used as a hypothesis or tested in an experiment (SI16A) |
| conclusion | statement that supports or refutes the hypothesis; best determined in graphs by analyzing the effect of X on Y. (SI9,15,8,11,13) |
| goggles | number one safety rule when using heat or chemicals (SI10); review safety rules and equipment |
| precise | measuring equipment with smaller increments or scale is more ___ than ones with larger scales. (SI3) |
| bar graph | graph used to show sets of data not dependent on one another (SI4) |
| line graph | graph used to show continual change as X (independent) influences Y(dependent) (SI4) |
| MRI, genetic testing, DNA fingerprinting | examples of how scientific advances and emerging technologies are used to diagnosis disease and aid in forensics (SI14) |
| scale | in graphing, the value from one increment to the next is called the ___ & must have the same value along the graph axis (SI5) |
| valid | if data is acceptable it is considered ___(SI9,15,8,11,13) |
| inference | a conclusion determined when one analyzes how X influences Y (SI9,15,8,11,13) |
| peer review | when scientists recreate another's experimental procedure to verify technique (that proper controls are present) and to check the validity of the results (that you can get the same results each time) (SI16A-E) |
| pie graph | graph used to show sets of data that make up parts of a whole; percentages (SI4) |
| theory | statement that has been well tested and proven valid ; still subject to modifications if new scientific evidence / data is found to revise or reject it (SI13 &11) |
| T-chart | Simplest way to display data (X,Y) to show how X influences Y; X in first column; Y in second column (SI4) |
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