# Trivia Quiz On Independent Variables, Dependent Variables And Constants

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Below is a trivia quiz on independent variables, dependent variables, and constants. When it comes to experiments and studies, there are a lot of variables that are to be considered, and the quiz below is perfect for helping see how well you understand them by use of some examples. Be sure to give it a shot and see how well you do.

• 1.

### Cactuses (cacti)  were studies to determine if the amount of humidity affects the growth of the plants. Which of these was the independent variable in the study?

• A.

Growth

• B.

Sand

• C.

Cactuses

• D.

Humidity

D. Humidity
Explanation
Independent variable: The variable you are studying. Since we want to know if HUMIDITY affects growth, HUMIDITY is the independent variable.

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• 2.

### Cactuses(cacti)  were studied to determine if the amount of humidity affected the growth of these plants. Which of these was the dependent variable in this study?

• A.

Growth

• B.

Sand

• C.

Cacti

• D.

Humidity

A. Growth
Explanation
Dependent variable is the "responding variable". The values DEPEND on what happens in the experiment!

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• 3.

### Look at the table below. Which variable factor(s) were kept constant?

• A.

Water and temperature only

• B.

Water, temperature, number of hours and relative humidity, only

• C.

Number of plants, water, number of hours of daylight and relative humidity, only

• D.

Number of plants, water, temperature, number of hours of daylight, relative humidity and number of leaves

• E.

Number of plants, water, temperature, number of hours of daylight, relative humidity, only

C. Number of plants, water, number of hours of daylight and relative humidity, only
Explanation
The table provided shows different variables, including number of plants, water, temperature, number of hours of daylight, and relative humidity. The question asks which variables were kept constant. The correct answer states that only the number of plants, water, number of hours of daylight, and relative humidity were kept constant. This means that the other variables, such as temperature and number of leaves, were not held constant and likely varied throughout the experiment.

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• 4.

### Look at the table below. Plants were grown in different environments to see if temperature affects the number of new leaves per week. Which variable is the independent variable?

• A.

Water

• B.

Temperature

• C.

Number of daylight hours

• D.

Relative Humidity

• E.

Average Number of leaves per Week.

B. Temperature
Explanation
The independent variable is the ONE factor that is purposely being changed in the experiment.

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• 5.

### Look at the table below. Plants were grown in different environments to see if temperature affects the number of new leaves per week. Which variable is the dependent variable?

• A.

Water

• B.

Temperature

• C.

Number of daylight hours

• D.

Relative Humidity

• E.

Average Number of leaves per Week.

E. Average Number of leaves per Week.
Explanation
The dependent variable DEPENDS what happens in the experiment -- it represents the results of the experiment.

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• Current Version
• Mar 21, 2023
Quiz Edited by
ProProfs Editorial Team
• Apr 25, 2019
Quiz Created by
Kwchiro

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