Independent and Dependent Variables

Front

What is the difference between independent and dependent variables?

Back

The independent variable is the one that is changed or controlled in a scientific experiment to test its effects on the dependent variable, which is the variable being tested and measured.

Front

What is an example of an independent variable in an experiment?

Back

An example of an independent variable could be the amount of sunlight a plant receives.

Front

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

Back

An example of a dependent variable could be the growth of the plant measured in height.

Front

What type of data is collected when measuring time, temperature, or length?

Back

Quantitative data.

Front

What is a controlled variable?

Back

A controlled variable is a factor that is kept constant throughout an experiment to ensure that the results are valid.

Front

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

Back

Only one independent variable should be tested at a time.

Front

What is the purpose of having controlled variables in an experiment?

Back

Controlled variables help to ensure that the experiment is fair and that the results are due to the independent variable.

Front

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

Back

A fair test means that only one variable is changed at a time while all other conditions are kept the same.

Front

What is the role of the dependent variable in an experiment?

Back

The dependent variable is what you measure in the experiment and what is affected during the experiment.

Front

What is the significance of recording reactions in an experiment?

Back

Recording reactions helps to analyze the effects of the independent variable on the dependent variable.