Independent/Dependent Variables

Front

What is an Independent Variable?

Back

The variable that is changed or controlled in a scientific experiment to test its effects on the dependent variable.

Tags

NGSS.MS-PS2-2

Front

What is a Dependent Variable?

Back

The variable that is measured and affected in an experiment; it responds to changes in the independent variable.

Tags

NGSS.MS-PS1-2

Front

In an experiment, what is the Control?

Back

The standard to which comparisons are made in an experiment; it is not changed.

Front

If you drop different objects from the same height, what is the independent variable?

Back

The type of object being dropped.

Front

If you are measuring how long it takes for a ball to bounce back after being dropped, what is the dependent variable?

Back

The time it takes for the ball to bounce back.

Front

What is the purpose of a hypothesis in an experiment?

Back

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

Front

How does changing the independent variable affect the dependent variable?

Back

Changing the independent variable can cause changes in the dependent variable, which is what the experiment aims to measure.

Tags

NGSS.MS-PS3-4

Front

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

Back

The amount of sunlight each plant receives.

Tags

NGSS.MS-LS1-5

Front

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

Back

The height of the plants after a certain period.

Tags

NGSS.MS-LS1-5

Front

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

Back

To ensure that any changes in the dependent variable are due to the manipulation of the independent variable.

Tags

NGSS.MS-PS1-2