Apologia General Science Module 3 Analyzing & Interpreting Experiments
Quiz yourself by thinking what should be in
each of the black spaces below before clicking
on it to display the answer.
Help!
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| Experimental variable | An aspect of an experiment that changes during the course of the experiment
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| Control (of an experiment) | The variable or part of the experiment to which all others will be compared
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| Single-blind experiments | Experiments in which the participants do not know whether or not they are a part of the control group
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| Double-blind experiments | Experiments in which neither the participants nor the people analyzing the results know who is in the control group
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| Why can a needle float on water? | surface tension
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| What does soap do to the surface of water? | Reduces the surface tension of water
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| True or False? Saltwater is more dense than pure water. | True
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| surface tension | Can be thought of as a thin film that stretches across the surface of every liquid
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| subjective data | the data being collected depends to some extent on the opinions of people
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| objective data | There is no way opinion can affect the experimental results; rather it is based on measurable data.
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| pain threshold | Some people can experience a lot of pain and barely notice it, while others can experience just a little pain and be miserable.
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| x-axis | the horizontal scale on a graph
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| y-axis | the vertical scale on a graph
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| placeboes | fake pills
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| experimental variable | Is good when you are using it to learn something from the experiment. Should be reduced or eliminated when if effects the results of the experiment but you do not learn anything from it.
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| When is a single-blind experiment used? | When the data from the experiment will result in objective data.
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| When is a double-blind experiment used? | When the data from the experiment will result in subjective data.
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| When is it not necessary to use a single or double-blind experiment? | When the subjects being studied are not people, but rather plants for example.
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| What is the one reason a test might be done as a double-blind experiment even though the data is objective and does not require this type of testing? | When the researcher wants to avoid any criticism regarding his honesty in conducting the experiment and reporting the results.
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You may also shuffle the rows of the table by clicking on the "Shuffle" button.
Or sort by any of the columns using the down arrow next to any column heading.
If you know all the data on any row, you can temporarily remove it by tapping the trash can to the right of the row.
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Created by:
nmaeser
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