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Questions and Answers
Which of the following is the scientific method used to study natural phenomena?
Which of the following is the scientific method used to study natural phenomena?
- Observation, hypothesis, experiment, analysis, conclusion (correct)
- Experiment, observation, hypothesis, analysis, conclusion
- Hypothesis, experiment, observation, analysis, conclusion
- Observation, assumption, experiment, analysis, conclusion
What is a hypothesis in the context of scientific research?
What is a hypothesis in the context of scientific research?
- A tentative explanation based on observations and reasoning (correct)
- A proven fact derived from experimentation
- An absolute truth based on scientific opinions
- A random guess about natural phenomena
In an experiment, what is the independent variable?
In an experiment, what is the independent variable?
- The variable that depends on the outcome of the experiment
- The variable that remains constant throughout the experiment
- The variable that is measured or observed during the experiment
- The variable that is deliberately changed by the experimenter (correct)
What is the purpose of conducting control experiments?
What is the purpose of conducting control experiments?
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Study Notes
Scientific Method
- A systematic approach to investigating natural phenomena, involving observation, experimentation, and analysis.
- Consists of several steps: making observations, forming a hypothesis, conducting experiments, analyzing data, and drawing conclusions.
Hypothesis
- A testable prediction regarding the relationship between variables in a study.
- Serves as a starting point for experimentation to validate or invalidate the proposed explanation.
Independent Variable
- The factor that is deliberately changed or manipulated in an experiment to assess its effect on the dependent variable.
- It is the presumed cause in an experiment, helping to establish cause-and-effect relationships.
Control Experiments
- Conducted to ensure that the results of an experiment are due to the independent variable, not other factors.
- Help establish a baseline for comparison by keeping other variables constant, allowing for clearer conclusions about the effect of the independent variable.
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