A student hypothesizes that a goldfish will be more active in a bowl that has red gravel than in a bowl with grey gravel. To test this hypothesis, the student places on goldfish in a bowl with red gravel and another in a bowl with grey gravel. The color of the gravel is the blank variable in the experiment.
A. Control
B. Responding
C. Dependent
D. Independent
Is the answer D?
what are the right answers??
These are right, everyone has different answers for their letters.
No, the correct answer is actually C. Dependent.
In an experiment, the independent variable is the one that the researcher manipulates or changes. In this case, the color of the gravel is not being manipulated or changed by the researcher. It is just an existing condition.
The dependent variable, on the other hand, is the variable that is expected to change in response to the independent variable. In this experiment, the student is observing the behavior of the goldfish (their activity level) based on the color of the gravel. Therefore, the activity level of the goldfish is the dependent variable in this case.
I agree
Lesson 13 introduction to science unit test 8th grade.
A
B
C
B
C
A
B
D
C
A
C
C
D
Skeptical
Inference
Invention technology
17-20 short answers
You don't have to believe me but these are 100% correct I just took the test and I got 9/16 but these are the answers. I PROMISE!