Scientific Variables

Front

What is a dependent variable?

Back

A dependent variable is the outcome or effect that is measured in an experiment. It changes in response to the independent variable.

Front

What is an independent variable?

Back

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

Front

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

Back

The control is a standard of comparison in an experiment. It is the group that does not receive the experimental treatment.

Front

What is the purpose of a hypothesis in scientific experiments?

Back

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

Front

How do you identify the dependent variable in an experiment?

Back

The dependent variable is identified by asking what is being measured or observed in the experiment.

Front

What is the role of constants in an experiment?

Back

Constants are factors that remain the same throughout an experiment to ensure that the test is fair.

Front

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

Back

The height of the plants is an example of a dependent variable, as it is measured to see how it is affected by other factors.

Front

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

Back

The amount of sunlight the plants receive is an example of an independent variable, as it is changed to observe its effect on growth.

Front

Why is it important to have a control group in an experiment?

Back

A control group is important because it helps to isolate the effects of the independent variable by providing a baseline for comparison.

Front

What does it mean to conduct a fair test?

Back

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