7 Science Independent and Dependent Variables

Front

What is an independent variable?

Back

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

Front

What is a dependent variable?

Back

The dependent variable is the factor that is measured in an experiment. It is affected by changes in the independent variable.

Front

In an experiment, what does the term 'controlled variable' refer to?

Back

Controlled variables are the factors that are kept constant throughout the experiment to ensure that the results are valid.

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 is measuring.

Front

What is the purpose of an experiment?

Back

The purpose of an experiment is to test a hypothesis by manipulating independent variables and observing the effects on dependent variables.

Front

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

Back

The amount of sunlight the plants receive.

Front

Give an example of a dependent variable in an experiment measuring the effect of fertilizer on 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 have controlled variables in an experiment?

Back

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

Front

What is a hypothesis in the context of an experiment?

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A hypothesis is a testable prediction about the relationship between the independent and dependent variables.