7-20 Flashcards
What is the first step in the scientific method?
Observation
This involves gathering information and noticing patterns or phenomena.
What follows after forming a hypothesis in the scientific method?
Conducting experiments
This step tests the hypothesis through controlled methods.
Fill in the blank: The _______ is a testable prediction based on observations.
[hypothesis]
What is the purpose of a control group in an experiment?
To provide a baseline for comparison
Control groups help determine the effect of the variable being tested.
True or False: A theory is a proven fact in science.
False
A theory is a well-substantiated explanation of an aspect of the natural world that can incorporate laws, hypotheses, and facts.
What is the role of peer review in scientific research?
To validate research findings by experts in the field
Peer review helps ensure the quality and credibility of scientific work.
List the steps of the scientific method in order.
- Observation
- Hypothesis
- Experimentation
- Analysis
- Conclusion
What is the difference between qualitative and quantitative data?
Qualitative data describes characteristics; quantitative data involves numbers
Qualitative data can include descriptions or categories, while quantitative data is measurable.
Fill in the blank: The _______ variable is manipulated in an experiment.
[independent]
What does the dependent variable represent in an experiment?
The outcome that is measured
The dependent variable changes in response to the independent variable.
True or False: All scientific experiments must have a control group.
False
While control groups are important, not all experiments require them, especially in observational studies.
What is the significance of replicating experiments in science?
To ensure results are consistent and reliable
Replication helps confirm findings and reduces the likelihood of error.
What is a scientific law?
A statement that describes a consistently observed phenomenon
Scientific laws summarize a set of observations but do not explain why they occur.
Fill in the blank: A _______ is a proposed explanation for a phenomenon.
[hypothesis]
What is the importance of data analysis in scientific research?
To interpret results and draw conclusions
Data analysis allows scientists to make sense of the information gathered during experiments.
