Scientific Method
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| Scientific Method | the procedure scientists use to help explain why things happen the way they do
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| Problem | something you don't understand but you can do an experiment to help you understand
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| Scientific problems | usually based on observation of scientific phenomena; the first step of the scientific method involves being able to recognize the problem
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| Observations | consists of receiving knowledge of the outside world through our senses, or recording information using scientific tools and instruments
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| Inference | an idea or conclusion that's drawn from evidence and reasoning. An inference is an educated guess; conclusion about our observations
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| Hypothesis | a testable explanation for the details you observed
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| Experiment | tests the hypothesis
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| Variable | something that changes in an experiment
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| Data | record of the observations that is analyzed in order to make a conclusion
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| Conclusion | an experiment that is repeated several times, in order to rule out accidents and any variables that may not have been considered
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| Theory | explanatory statement that’s been repeatedly confirmed through experimental testing
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| Scientific knowledge | if a theory is proven valid over and over again
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| Control Group | The group or subject that is used as a standard for comparison in an experiment.
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| Experimental Group | The group or subjects that is included in the experiment. This is the group where the independent variable is applied.
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| Measure | To compare the characteristics of something (such as mass, length, volume) with a standard (such as grams, meters, liters).
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| Prediction | A statement made about the future outcome of an experiment based on past experiences or observations. It is found in the "then" portion of a hypothesis.
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| Qualitative data | Data that is based on observable characteristics of things or events that can be collected using the five senses. Example: "The juice tastes sweet to me."
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| Quantitative data | Data that is based on measurable characteristics of things or events such as mass, volume, length, and quantity. Example: "There is one liter of juice in the carton.
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| Independent Variable | A factor that can be changed or manipulated in an experiment by the scientist; "you change it" variables.
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| Dependent Variable | A factor that responds to changes in other variables in an experiment; "it changed" variables.
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| Constant or controlled Variable | A variable variables that are held the same or constant for all experimental groups.
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