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Scientific Method
Term | Definition |
---|---|
observation | the process of obtaining information by using the senses |
hypothesis | an idea or explanation that is based on observations and can be tested |
independent variable | in an experiment, the factor that is deliberately changed by the scientist |
dependent variable | the factor that is observed and data that is collected during an experiment |
peer review | the process in which experts examine the results and conclusions of a scientist's study before it is accepted for publication |
theory | an explanation of some aspect of the natural world that is acquired through the scientific method and repeatedly tested and confirmed through observation and experimentation |
State the Question/Observation | 1st step in the scientific method |
Collect Information | 2nd step in the scientific method |
Form a Hypothesis | 3rd step in the scientific method |
Test the Hypothesis | 4th step in the scientific method |
Record and Analyze Data | 5th step in the scientific method |
Draw a Conclusion | Last step in the scientific method |
Controlled Experiment | only one variable changed be changed at a time |
Quantitative data | numbers obtained by counting or measuring |
Qualitative data | descriptions and characteristics that cannot be counted |
Controlled Experiment | only one variable can be changed at a time |
Control Group | In an experiment, the group with that shows what will happen when the experimental factor is not included |
Experimental Group | In an experiment, the group with the variable being tested |