Independent and Dependent Variables

Front

What is an independent variable in an experiment?

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 in an experiment?

Back

The dependent variable is the factor that is measured or observed in an experiment, which is affected by changes in the independent variable.

Front

In Peter's experiment, what was the independent variable?

Back

The type of liquid (water or soda) being tested.

Front

In Janet's experiment, what was the dependent variable?

Back

The distance the marbles rolled.

Front

What is the purpose of controlling variables in an experiment?

Back

Controlling variables ensures that the experiment tests only the effect of the independent variable on the dependent variable.

Front

How can you identify the dependent variable in an experiment?

Back

The dependent variable can be identified by asking what is being measured or observed as a result of changing the independent variable.

Front

What is the significance of the hypothesis in an experiment?

Back

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

Front

In Joanna's experiment, what was the dependent variable?

Back

The temperature measured by the thermometer on each t-shirt.

Front

What is the role of observation in scientific experiments?

Back

Observation is crucial for collecting data on the dependent variable and determining the outcome of the experiment.

Front

In Margaret's experiment, what was the independent variable?

Back

The type of solid (ice or chocolate) being tested.