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Mastering Variables in Science Experiments Quiz

Last updated over 2 years ago

11 questions

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Question 1

1.

Which of the following best defines an independent variable in a science experiment?

The variable that remains constant throughout the experiment

The variable that is manipulated or changed

The variable that is affected by the independent variable

The variable that is measured or observed

Question 2

2.

In an experiment investigating the effect of different fertilizers on plant growth, which of the following is the dependent variable?

The amount of sunlight received

The type of fertilizer used

The height of the plants

The temperature in the greenhouse

Question 3

3.

In a study examining the impact of 30 minutes of exercise on heart rate, which of the following are controlled variables? Select all that apply.
Make sure not to select the independent or dependent variable.

The age of the participants

The type of exercise performed

The heart rate before starting the exercise

The heart rate after the exercise

30 minutes of exercise

The temperature/climate where the exercise is taking place

Question 4

4.

Which of the following is an example of an independent variable in an experiment about the effect of temperature on the rate of chemical reactions?

The temperature at which the reaction is conducted

The concentration of the reactants

The volume of the reaction mixture

The time it takes for the reaction to occur

Question 5

5.

In a study investigating the effect of different study techniques on test scores, which of the following is the dependent variable?

The time spent studying

The type of study materials used

The number of participants in the study

The test scores achieved

Question 6

6.

In an experiment examining the effect of different types of soil on plant growth, which of the following is an independent variable?

The type of soil used

The temperature in the greenhouse

The height of the plants

The amount of water given to the plants

Question 7

7.

Which of the following is an example of a dependent variable in an experiment about the effect of light intensity on photosynthesis?

The amount of carbon dioxide available

The size of the plant leaves

The color of the light used

The rate of photosynthesis

Question 8

8.

What term is used for the group in an experiment that does not receive the experimental treatment and is used as a baseline for comparison among other groups in an experiment?

Control Group

Independent Variable

Dependent Variable

Controlled Variable

Question 9

9.

Which of the following best defines a controlled variable in a science experiment?

The variable that remains constant throughout the experiment

The variable that is manipulated or changed

The variable that is measured or observed

The variable that is affected by the independent variable

Question 10

10.

Which of the following best defines a dependent variable in a science experiment?

The variable that remains constant throughout the experiment

The variable that is manipulated or changed

The variable that is measured or observed

The group that does not receive treatment in an experiment and is used as a baseline for comparison

Question 11

11.

Create an experiment and identify the independent, dependent and list 2 controlled variables. Format your response like this:

Experiment Scenario:

Independent Variable:
Dependent Variable:
Controlled Variables:
1.
2.