Planning Experiments and Data Analysis

Flashcard
•
Science
•
9th Grade
•
Hard
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15 questions
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1.
FLASHCARD QUESTION
Front
What is the sample size in an experiment?
Back
It is how many times you test the variable in an experiment.
2.
FLASHCARD QUESTION
Front
What is the dependent variable in an experiment?
Back
It is the variable that is measured or counted, such as the number of aphids in the gardener's experiment.
3.
FLASHCARD QUESTION
Front
Why is it important to calculate the average of data points in scientific experiments?
Back
Calculating the average helps in making comparisons, drawing conclusions, and making predictions.
4.
FLASHCARD QUESTION
Front
What does the independent variable represent in an experiment?
Back
It is what is changed or manipulated in the experiment, such as the type of bait used.
5.
FLASHCARD QUESTION
Front
How do you calculate the average of a data set?
Back
Add all the data points together and divide by the number of points.
6.
FLASHCARD QUESTION
Front
What is a control group in an experiment?
Back
It is the group that does not receive the experimental treatment, used for comparison.
7.
FLASHCARD QUESTION
Front
What is a hypothesis?
Back
A hypothesis is a testable prediction about the relationship between variables.
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