Independent and dependent variables

Front

What is an independent variable?

Back

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

Front

What is a dependent variable?

Back

The dependent variable is the variable that is being tested, counted, or measured in an experiment, and it responds to the independent variable.

Front

In an experiment, what is the purpose of a control variable?

Back

Control variables are the factors that are kept constant to ensure that the results are due to the independent variable.

Front

What is the relationship between independent and dependent variables?

Back

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

Front

Give an example of an independent variable in a study about plant growth.

Back

The amount of sunlight the plants receive.

Front

Give an example of a dependent variable in a study about plant growth.

Back

The height of the plants after a certain period.

Front

What does it mean to measure a dependent variable?

Back

Measuring a dependent variable means observing and recording the changes that occur as a result of manipulating the independent variable.

Front

In Julie's study, what is the independent variable?

Back

The extra 10 minutes of studying each day.

Front

In Angel's soap experiment, what is the independent variable?

Back

The type of soap used.

Front

Why is it important to identify independent and dependent variables in an experiment?

Back

Identifying these variables helps to clarify the purpose of the experiment and the relationship being tested.