Independent and Dependent Variables Quiz

What is an independent variable?

• A variable that remains constant throughout the experiment

• A variable that is only used in qualitative research

• A variable that is manipulated or changed by the experimenter

• A variable that is not relevant to the experiment

Tags

NGSS.MS-PS3-4

Which of the following is an example of an independent variable: a) Temperature b) Height c) Time

• b) Height

• c) Time

• d) Weight

• a) Temperature

What is a dependent variable?

• The variable that remains constant in an experiment

• The variable that is manipulated by the experimenter

• The variable that is not affected by the independent variable

• The variable being tested and measured in a scientific experiment.

Which of the following is an example of a dependent variable: a) Number of hours studied b) Type of soil c) Amount of water

• b) Type of tree

• d) Temperature of the sun

• a) Number of hours slept

• c) Amount of water

Tags

NGSS.MS-PS2-2

In an experiment to test the effect of sunlight on plant growth, what is the independent variable?

• Soil

• Water

• Temperature

• Sunlight

Tags

NGSS.MS-LS1-5

NGSS.MS-LS1-6

In an experiment to test the effect of fertilizer on plant growth, what is the dependent variable?

• Type of soil

• Amount of sunlight

• Plant growth

• Watering schedule

Tags

NGSS.MS-LS1-5

Why is it important to identify control variables in an experiment?

• To make the experiment more confusing

• To add unnecessary complexity to the experiment

• To ensure that the experiment results are accurate and reliable.

• To waste time and resources

Tags

NGSS.MS-PS3-4

NGSS.MS-PS1-2

Which of the following is a control variable in an experiment to test the effect of exercise on heart rate: a) Type of exercise b) Age of participants c) Room temperature

• b) Color of the participants' shoes

• c) Brand of the exercise equipment

• d) Time of day the experiment is conducted

• a) Type of exercise

Explain the role of variables in experiments.

• Variables in experiments are only used for decoration

• Variables in experiments are irrelevant and unnecessary

• Variables in experiments are used to confuse the researchers

• Variables in experiments help to measure and control the conditions or factors that may affect the outcome of the experiment.

Tags

NGSS.MS-PS3-4

NGSS.MS-PS2-2

In a study to determine the effect of music on concentration, what would be the independent variable?

• Type of music

• Number of participants

• Duration of the study

• Volume of the music