Independent and Dependent Variables

Front

What is an independent variable?

Back

The independent variable is the factor that is changed or manipulated in an experiment to observe its effect 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

Why is it important to control other variables in an experiment?

Back

Controlling other variables ensures that any changes in the dependent variable are due to the manipulation of the independent variable, allowing for accurate conclusions.

Front

How many independent variables should be tested in a controlled experiment?

Back

Only one independent variable should be tested at a time in a controlled experiment.

Front

What is a controlled variable?

Back

A controlled variable is a factor that is kept constant throughout an experiment to ensure that it does not affect the outcome.

Front

In Ben's helicopter experiment, what is the independent variable?

Back

The independent variable is the wing length of the paper helicopters.

Front

In Ben's helicopter experiment, what is the dependent variable?

Back

The dependent variable is the amount of time it takes for the helicopter to hit the ground.

Front

What is the purpose of an experiment?

Back

The purpose of an experiment is to test a hypothesis by manipulating one variable and observing the effect on another.

Front

What is a hypothesis?

Back

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

Front

What is the difference between qualitative and quantitative data?

Back

Qualitative data describes characteristics or qualities, while quantitative data involves numerical measurements.