Scientific Variables

Front

What is an independent variable?

Back

The independent variable is the variable that is changed by the scientist at the beginning of the experiment.

Front

What is a dependent variable?

Back

The dependent variable is the outcome of the experiment, or what we are trying to measure.

Front

What is a control variable?

Back

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

Front

How does study time affect a student's score?

Back

Study time is the independent variable, and the student's score is the dependent variable.

Front

What is the purpose of a hypothesis?

Back

A hypothesis is a testable statement that predicts the relationship between the independent and dependent variables.

Front

What is the difference between independent and dependent variables?

Back

The independent variable is manipulated by the researcher, while the dependent variable is measured to see how it is affected.

Front

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

Back

The amount of sunlight the plants receive.

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 are control variables important in an experiment?

Back

Control variables are important because they help ensure that the experiment is fair and that the results are due to the independent variable.

Front

What does it mean to measure a dependent variable?

Back

To measure a dependent variable means to collect data on how it changes in response to the independent variable.