Experimental Design

Flashcard
•
Science
•
8th Grade
•
Hard
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15 questions
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1.
FLASHCARD QUESTION
Front
What is an independent variable in an experiment?
Back
An independent variable is the factor that is manipulated or changed in an experiment to observe its effect on the dependent variable.
2.
FLASHCARD QUESTION
Front
What is a dependent variable in an experiment?
Back
A dependent variable is the factor that is measured or observed in an experiment, which is affected by changes in the independent variable.
3.
FLASHCARD QUESTION
Front
Why is it important to test only one independent variable at a time?
Back
Testing only one independent variable at a time helps to isolate its effects and ensures that any changes in the dependent variable can be attributed directly to that independent variable.
4.
FLASHCARD QUESTION
Front
What is the purpose of a control group in an experiment?
Back
A control group serves as a baseline to compare the effects of the independent variable, helping to validate the results of the experiment.
5.
FLASHCARD QUESTION
Front
What is an inference?
Back
An inference is a conclusion drawn from observations or evidence, rather than direct statements.
6.
FLASHCARD QUESTION
Front
How does watching TV during studying affect a student's test grades?
Back
Watching TV during studying can negatively impact a student's test grades, as it may distract them from focusing on their studies.
7.
FLASHCARD QUESTION
Front
What is the difference between qualitative and quantitative data?
Back
Qualitative data describes characteristics or qualities (e.g., colors, textures), while quantitative data involves numerical measurements (e.g., height, weight).
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