Scientific Method Variables

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

• Independent Variable (IV)

• Dependent Variable (DV)

• Control Variable (CV)

The independent variable is the ONE thing you _____.

• change

• keep the same

• experiment with

• investigate

Tags

NGSS.MS-PS2-2

NGSS.MS-PS3-4

The variable that you measure is the -

• IV

• DV

• Constant

• Repeated Trial

Tags

NGSS.MS-PS2-2

NGSS.MS-PS3-4

In a well designed experiment, you should change how many variables?

• only one

• no more than two

• none at all

• as many as are needed

In a controlled ​ (a)   , scientists test one or more ​ (b)   (s). The ​ (c)   is the tested variable or the one changed on purpose, where the ​ (d)   is the observed variable or what is measured, it is the response to the change.

• experiment

• variable

• independent variable

• dependent variable

• controlled variable

• survey

• hypothesis

• control group

• repeated observation

Tags

NGSS.MS-PS2-2

Match the following.

• The part of the experiment that changes in a measurable way in response to what is being tested.

• experiment

• The part of the experiment that is manipulated or changed in order to test the hypothesis.

• controls

• A scientific procedure carried out to test a hypothesis.

• dependent variable

• The parts of the experiment that stay the same to make it valid.

• independent variable

Tags

NGSS.MS-PS1-2

The variable that will measure the effect of the independent variable:​ (a)  

• dependent variable

• constant

• control

• experiment

The ​ (a)   is controlled by the scientist.

• independent variable

• dependent variable

• conclusion

• data

Tags

NGSS.MS-PS2-2

NGSS.MS-PS3-4

How does the​ (a)   ​ ​ affect the ​ (b)   ​ ?

• Independent Variable

• Dependent Variable

Tags

NGSS.MS-LS1-5

Dependent variable means

• the scientist controls what to test

• educated guess

• ask a question

• what is being measured

Tags

NGSS.MS-LS1-5