Experimental Design

Front

What is an Independent Variable?

Back

The type of variable that you change or manipulate in an experiment. It is what you are testing.

Front

What is a Dependent Variable?

Back

The type of variable that responds to the experiment and is what you measure to determine if your hypothesis is true.

Front

What are Constants in an experiment?

Back

The parts of the experiment that must be kept the same.

Front

In Dory's experiment, what is the dependent variable when testing how the mass of a ball affects the distance it rolls off a ramp?

Back

The distance traveled by the ball.

Front

What is an example of an Independent Variable in a plant growth experiment?

Back

The type of fertilizer used.

Front

What is a Control Variable?

Back

Variables that are kept constant to ensure a fair test.

Front

Why is it important to have Constants in an experiment?

Back

To ensure that the results are due to the independent variable and not other factors.

Front

What is the purpose of a Hypothesis in an experiment?

Back

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

Front

What does it mean to 'manipulate' a variable in an experiment?

Back

To change or control the variable to observe its effect on the dependent variable.

Front

What is the role of a Control Group in an experiment?

Back

A group that does not receive the experimental treatment, used for comparison.