Controls and variables

Flashcard
•
Biology
•
10th Grade
•
Hard
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15 questions
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1.
FLASHCARD QUESTION
Front
What is an independent variable?
Back
An independent variable is the variable that is deliberately changed or manipulated in an experiment to test its effects on the dependent variable.
2.
FLASHCARD QUESTION
Front
What is a dependent variable?
Back
A dependent variable is the variable that is measured or observed in an experiment, which is affected by changes in the independent variable.
3.
FLASHCARD QUESTION
Front
What is a control variable?
Back
Control variables are the factors that are kept constant throughout an experiment to ensure that any changes in the dependent variable are due to the independent variable.
4.
FLASHCARD QUESTION
Front
In an experiment, what is the purpose of a control group?
Back
The control group serves as a baseline to compare the effects of the independent variable, as it does not receive the treatment or change being tested.
5.
FLASHCARD QUESTION
Front
How does changing the independent variable affect the dependent variable?
Back
Changing the independent variable is expected to cause a change in the dependent variable, allowing scientists to observe the relationship between the two.
6.
FLASHCARD QUESTION
Front
What is the role of a hypothesis in an experiment?
Back
A hypothesis is a testable prediction about the relationship between the independent and dependent variables.
7.
FLASHCARD QUESTION
Front
What is the difference between qualitative and quantitative data?
Back
Qualitative data describes characteristics or qualities (e.g., color, texture), while quantitative data involves numerical measurements (e.g., height, weight).
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