Identifying Variables

Front

What is an independent variable?

Back

The independent variable is the factor that is changed on purpose in an experiment to observe its effect.

Front

What is a dependent variable?

Back

The dependent variable is the factor that is measured or observed in an experiment, which changes in response to the independent variable.

Tags

NGSS.MS-PS1-2

Front

What is a control variable?

Back

Control variables are factors that are kept the same throughout an experiment to ensure that the results are valid.

Front

In the experiment 'Will fish school more if a predator is present?', what is the independent variable?

Back

Whether there is a predator or not.

Front

In Janet's experiment on coffee and productivity, what is the independent variable?

Back

Having coffee or not.

Front

What does it mean to change the independent variable?

Back

To change the independent variable means to alter the factor that is being tested in the experiment.

Tags

NGSS.MS-PS3-4

Front

What is the purpose of identifying the independent variable in an experiment?

Back

Identifying the independent variable helps to understand what factor is being tested and how it may affect the outcome.

Tags

NGSS.MS-PS2-2

NGSS.MS-PS3-4

Front

Give an example of an independent variable in a plant growth experiment.

Back

The type of liquid given to the plants (e.g., water, apple juice, milk).

Tags

NGSS.MS-LS1-5

Front

What is the relationship between independent and dependent variables?

Back

The independent variable is manipulated to observe its effect on the dependent variable.

Tags

NGSS.MS-PS2-2

Front

Why is it important to keep control variables constant?

Back

Keeping control variables constant ensures that the experiment is fair and that the results are due to the independent variable.