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Questions and Answers
In an experiment measuring the effect of different types of fertilizer on plant growth, which variable is the independent variable?
In an experiment measuring the effect of different types of fertilizer on plant growth, which variable is the independent variable?
- The temperature of the room where the plants are kept
- The height of the plants
- The type of fertilizer used (correct)
- The amount of water given to the plants
A scientist is studying how the amount of sleep affects test performance. Which variable represents the dependent variable?
A scientist is studying how the amount of sleep affects test performance. Which variable represents the dependent variable?
- The score on the test (correct)
- The difficulty of the test
- The time of day the test is taken
- The number of students taking the test
A researcher wants to determine if a new drug reduces blood pressure. What would be the independent variable in this study?
A researcher wants to determine if a new drug reduces blood pressure. What would be the independent variable in this study?
- The dosage of the new drug given (correct)
- The age of the participants
- The gender of the participants
- The blood pressure of the participants
In an experiment to see how different amounts of sunlight affect the growth of sunflowers, what is the dependent variable?
In an experiment to see how different amounts of sunlight affect the growth of sunflowers, what is the dependent variable?
If a study is designed to investigate how study time influences exam grades, what is the independent variable?
If a study is designed to investigate how study time influences exam grades, what is the independent variable?
A scientist is testing whether a new fertilizer increases crop yield. What is the dependent variable?
A scientist is testing whether a new fertilizer increases crop yield. What is the dependent variable?
If you are conducting an experiment to find out how temperature affects the rate of a chemical reaction, the temperature would be best described as what type of variable?
If you are conducting an experiment to find out how temperature affects the rate of a chemical reaction, the temperature would be best described as what type of variable?
A researcher wants to see how different levels of exercise impact weight loss. What is the independent variable?
A researcher wants to see how different levels of exercise impact weight loss. What is the independent variable?
If a student is investigating how the color of light affects the rate of photosynthesis in plants, what is the dependent variable?
If a student is investigating how the color of light affects the rate of photosynthesis in plants, what is the dependent variable?
A study examines if the amount of water given to tomato plants affects the number of tomatoes produced. What is the independent variable?
A study examines if the amount of water given to tomato plants affects the number of tomatoes produced. What is the independent variable?
Flashcards
Independent Variables
Independent Variables
Variables that don't change on their own and influence others.
Dependent Variables
Dependent Variables
Variables that change based on the independent variable.
Independent variable example
Independent variable example
The factor that is being changed or manipulated in an experiment.
Dependent variable example
Dependent variable example
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Study Notes
Independent and Dependent Variables
- Variable: oval, idea or feeling name
- Independent variables do not change
- Independent variables cause change
- Independent variables do not need you, don’t change
- Dependent variables change
- Dependent variables rely on the independent
Example
- A gardener wants to see how different sun temps affect a flower's growth
- Independent: Sun
- Dependent: Flower; the flower is depending on the sun to grow
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