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The knowledge obtained by observing natural events and conditions in order to discover facts and formulate laws or principles that can be verified or tested. |
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| A series of steps followed to solve problems. |
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| An explanation that is based on prior scientific research or observation and that can be tested. |
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| The group in an experiment that does not show the variable being tested so comparisons can be done. |
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| An experiment that tests only one factor at a time by using a comparison of a control group with an experimental group. |
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| A factor that changes in an experiment in order to test a hypothesis. |
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| A variable whose value can be found from one or more other variables whose value is known first. |
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| A variable whose values are specified first or before an experiment is performed and are used to find values of an expression, another variable, or a function that depends on the first variable. |
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