INDEPENDENT AND DEPENDENT VARIABLES

Front

What is an independent variable?

Back

An independent variable is the variable that is manipulated or changed in an experiment to observe its effect on the dependent variable.

Front

What is a dependent variable?

Back

A dependent variable is the variable that is measured or observed in an experiment, which is affected by changes in the independent variable.

Front

In an experiment, if you change the amount of sunlight a plant receives, what is the independent variable?

Back

The amount of sunlight.

Front

In an experiment, if you measure how tall a plant grows in response to different amounts of sunlight, what is the dependent variable?

Back

The height of the plant.

Front

What is the purpose of identifying independent and dependent variables in an experiment?

Back

Identifying these variables helps to clarify the relationship being tested and ensures that the experiment is structured correctly.

Front

In a study examining the effect of temperature on the rate of a chemical reaction, what is the independent variable?

Back

Temperature.

Front

In a study examining the effect of temperature on the rate of a chemical reaction, what is the dependent variable?

Back

The rate of the chemical reaction.

Front

If a researcher is testing how different fertilizers affect plant growth, what is the independent variable?

Back

The type of fertilizer used.

Front

If a researcher is testing how different fertilizers affect plant growth, what is the dependent variable?

Back

The growth of the plants.

Front

What is a controlled variable?

Back

A controlled variable is a factor that is kept constant throughout an experiment to ensure that any changes in the dependent variable are due to the independent variable.