Independent vs. Dependent Variables

Front

What is an independent variable?

Back

An independent variable is the variable that is changed or controlled in a scientific experiment to test its effects on the dependent variable.

Front

What is a dependent variable?

Back

A dependent variable is the variable that is measured and affected in an experiment. It depends on the independent variable.

Front

In a graph, which axis represents the independent variable?

Back

The x-axis represents the independent variable.

Front

In a graph, which axis represents the dependent variable?

Back

The y-axis represents the dependent variable.

Front

What is the purpose of a control variable?

Back

A control variable is kept constant to ensure that the results of an experiment are due to the independent variable only.

Front

How does changing the independent variable affect the dependent variable?

Back

Changing the independent variable can cause changes in the dependent variable, which is what the experiment aims to measure.

Front

Give an example of an independent variable in an experiment about plant growth.

Back

The amount of sunlight the plants receive.

Front

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

Back

The height of the plants after a certain period.

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

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

Back

Identifying these variables helps in designing the experiment and understanding the cause-and-effect relationship.