Independent and Dependent Variables

Front

What is an independent variable in an experiment?

Back

The independent variable is the one factor that a scientist changes or tests during an experiment.

Front

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

Back

Controlling other variables is important so you can tell which factor is causing the change in the experiment.

Front

How many independent variables should be tested at a time in a controlled experiment?

Back

Only one independent variable should be tested at a time.

Front

What is a dependent variable in an experiment?

Back

The dependent variable is the variable that is measured or counted in an experiment.

Front

In the context of an experiment, what does 'controlled' mean?

Back

'Controlled' means that all other variables except the independent variable are kept constant to ensure a fair test.

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

Can an experiment have more than one dependent variable?

Back

Yes, an experiment can have multiple dependent variables, but it is important to clearly define them.

Front

What is an example of an independent variable in a plant growth experiment?

Back

The amount of sunlight each plant receives.

Front

What is an example of a dependent variable in a plant growth experiment?

Back

The height of the plants after a certain period.

Front

Why is it important to repeat experiments?

Back

Repeating experiments helps to verify results and ensure reliability.