Experimental Design

Front

This variable in an experiment is the one being changed by the scientist. Options: dependent variable, independent variable, control variable, control group

Back

independent variable

Front

Should experiments be repeated over and over to see if the results are the same each time?

Back

Yes

Front

Identify the independent variable in an experiment where toy cars with different masses roll down a ramp.

Back

mass of the car

Front

Identify a control variable in an experiment where toy cars with different masses roll down a ramp.

Back

height of the ramp

Front

Identify the dependent variable in an experiment where toy cars with different masses roll down a ramp.

Back

distance traveled by the cars

Front

Which variable depends on what is done at the beginning of an experiment?

Back

Dependent

Front

In an experiment to find out how the height from which a ball is dropped affects how high it bounces, what is the dependent variable?

Back

Height that the ball bounces

Front

A student is planning an experiment to find out how the height from which he drops a ball affects how high the ball bounces. A control variable is the _____.

Back

mass of the ball

Front

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

Back

To provide a standard for comparison

Front

In an experiment, what is the term for the variable that is kept constant?

Back

Control variable