Identify variables and OIP

In the following statement, identify the independent variable (IV):

A study was done to find if fuel types affect the engine’s performance in a car.

• Fuel type

• Engine's performance

• Type of car

In the following statement, identify the dependent variable (DV):

A study was done to find if fuel types affect the engine’s performance in a car.

• Fuel type

• Engine's performance

• Type of car

In the following statement, identify the control variable (CV):

A study was done to find if fuel types affect the engine’s performance in a car.

• Fuel type

• Engine's performance

• Type of car.

Tags

NGSS.MS-PS3-4

In the following experiment identify the independent variable (IV)

An experiment was performed to determine the health effects of different amounts of second-hand smoke on one-year old hamsters.

• The amount of food hamsters received

• The amount of second hand smoke the hamsters breathed

• The effects on the hamsters health

In the following experiment identify the dependent variable (DV)

An experiment was performed to determine the health effects of different amounts of second-hand smoke on one-year old hamsters.

• The amount food the hamsters recieved

• The amount of second hand smoke the hamsters breathed

• The effects on the hamsters health

In the following experiment identify the control variable (CV)

An experiment was performed to determine the health effects of different amounts of second-hand smoke on one-year old hamsters.

• The amount of food the hamsters recieved

• The amount of second hand smoke the hamsters breathed

• The effects on the hamsters health

The control variables are not always stated in an experiment or graph. Because of this, control variables are

• Observations

• Inferences

• Predictions

You can see IV and DV variables in statements and graphs because they are specifically mentioned. Because of that you can identify those variables through

• Observation

• Inference

• Prediction

Tags

NGSS.MS-PS3-4

When scientists are planning an experiment, they make an educated guess on what is going to happen when they do the experiment. This is called a(n)

• Observation

• Inference

• Prediction

Tags

NGSS.MS-PS1-2

In the following statement, identify the independent variable (IV)

Students of different ages were given the same math test. Researchers looked at the number of correct answers on the test.

• If students listened to music during the test

• The number of correct answers on the test

• The age of the students