Variables in Science Experiments: Practice!

Front

What is an independent variable in a scientific experiment?

Back

The independent variable is the one that is deliberately changed or manipulated to observe its effect on the dependent variable.

Front

What is a dependent variable in a scientific experiment?

Back

The dependent variable is the one that is measured or observed to see how it responds to changes in the independent variable.

Front

What is a controlled variable?

Back

A controlled variable is a factor that is kept constant throughout an experiment to ensure that the results are valid.

Front

What is the purpose of a control group in an experiment?

Back

The control group serves as a standard for comparison, allowing researchers to see the effect of the independent variable.

Front

In the scenario of studying incubator temperatures and hatch rates, what is the independent variable?

Back

The independent variable is the incubator temperature.

Front

In the scenario of studying incubator temperatures and hatch rates, what is the dependent variable?

Back

The dependent variable is the hatch rate of chicken eggs.

Front

How does changing the weight of a car affect its fuel efficiency? What is the dependent variable?

Back

The dependent variable is the fuel efficiency of the car.

Front

What is the difference between independent and dependent variables?

Back

The independent variable is manipulated by the researcher, while the dependent variable is measured to see how it responds.

Front

Why is it important to keep certain variables constant in an experiment?

Back

Keeping certain variables constant ensures that the experiment is fair and that the results are due to the manipulation of the independent variable.

Front

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

Back

An example of an independent variable could be the amount of sunlight the plants receive.