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ScientificMethod Obj
Earth Science Unit 1 Scientific Method Vocabulary
Question | Answer |
---|---|
Variable | The item that is being tested in an experiment. It is the only thing that is different between the experimental and control group. |
Independent Variable | The variable that is being introduced by the scientist in an experiment. It can stand alone and does not change. |
Dependent Variable | The variable that is being measured or tested in an experiment. It changes in response to the independent variable. |
Control Group | Group in an experiment that has the exact conditions except the variable being tested. |
Experimental Group | Group in an experiment that has the variable being tested. |
Hypothesis | A possible explanation or solution to a problem. |
Controlled Experiment | An experiment that contains both an experimental and control group. |
Valid | Accepted by the scientific community. Legitimate or believable. |
Placebo | A fake pill used in a control group of an experiment that does not contain the active ingredient of the medication being tested. |
Double Blind | A component in a medical experiment where both the subject and the nurse that is administering medication do not know if they are receiving the medication or the placebo. |
Large Sample Size | Conducting an experiment on many subjects. An important component to make an experiment's findings valid. |
Repeatability | The results of an experiment can be duplicated when the experiment is done again. |
Trials | Different attempts of the experiment. To increase validity of an experiments results the experiment should be repeated numerous times. |
Similarity Among Subjects | The subjects of an experiment should share similar characteristics relevant to the variable being tested in the experiment. |
How many variable should be tested in an experiment? | Only one variable should be tested in an experiment. |