What is a dependent variable in an experiment?
Final Exam Review

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Science
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9th Grade
•
Hard
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1.
FLASHCARD QUESTION
Front
Back
The dependent variable is the factor that is measured or observed in an experiment, which is affected by changes in the independent variable.
2.
FLASHCARD QUESTION
Front
In a food web, how much energy is typically passed to the tertiary consumer from the first trophic level?
Back
Typically, only about 10% of the energy from one trophic level is passed to the next. Therefore, if there are 600,000 kilocalories at the first level, the tertiary consumer would receive approximately 600 kilocalories.
3.
FLASHCARD QUESTION
Front
Define sustainability.
Back
Sustainability is the ability to meet the needs of the present without compromising the ability of future generations to meet their own needs.
4.
FLASHCARD QUESTION
Front
What type of dispersion is described when organisms are evenly spaced in an area?
Back
Uniform dispersion.
5.
FLASHCARD QUESTION
Front
Which historical era is known for significant pollution due to fossil fuel usage?
Back
The Industrial Revolution.
6.
FLASHCARD QUESTION
Front
What is an independent variable in an experiment?
Back
The independent variable is the factor that is changed or manipulated by the scientist to observe its effect on the dependent variable.
7.
FLASHCARD QUESTION
Front
What is the significance of controlling variables in an experiment?
Back
Controlling variables ensures that the experiment is fair and that the results are due to the independent variable alone.
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