Scientific Variables and Experiments

In a controlled experiment, how many variables can be worked with at a time? 

• one

• none

• two or more

• how ever many makes sense.

Tags

NGSS.MS-PS2-2

Mr. S. sets up an experiment to see how the mass of a ball affects the distance it rolls off a ramp.  Identify the independent variable.

• distance traveled by the ball

• height of the ramp

• mass of the ball

• weight of the ball

Tags

NGSS.MS-PS2-2

Which type of sugar dissolves the fastest?

Which is the independent variable?

• The temperature of the water

• The amount of water

• The type of sugar

• The type of cup you use

Which type of soap cleans the best?

• How dirty the plate is

• How hot the water is

• The type of soap

• The type of food on the plate

The variables that stay exactly the same in an experiment are called . . .

• independent

• dependent

• constants

• there are no variables in an experiment

Tags

Investigations

In an experiment, the one variable that is changed is called the

• experimental variable

• dependent variable

• controlled variable

• independent variable

Tags

NGSS.MS-PS2-2

In an experiment, the factor that we measure is called the

• controlled variable

• independent variable

• dependent variable

• conclusion

Tags

NGSS.MS-PS1-2

This variable is the actual data collected during the experiment. 

• independent variable

• dependent variable

• control group

• data group

The variables in an experiment that stay the same are the:

• IV

• DV

• Constants

Tags

NGSS.MS-PS2-2

The observed results of an experiment that occur from changes in the test variable (independent variable) are known as _______.

• controlled variables

• constants

• trials

• outcome variables