Scientific Variables

How many variables can be tested in a controlled experiment?

• one

• two

• three

• as many as possible

If I study for my scientific method test, then I will have a better test score. What is the dependent variable?

• Scientific Method

• Studying

• Independent variable

• Test score

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

• Independent Variable

• Dependent Variable

• Constants

• Control

Tags

NGSS.MS-PS2-2

A student wants to test the effects of type of exercise on heart rate.  What is the dependent variable?

• heart rate

• type of exercise

• amount of exercise

• time of day exercise occurs

What are the constant variables?

• what we are changing or testing

• what we are observing or measuring

• what we keep the same to make the experiment fair

Why do we want to test one variable at a time?

• Because it is hard to setup a data table with more

• To know what is causing the changes

• It is what has always been done

• No one really knows

Tags

NGSS.MS-PS2-2

This variable in an experiment is the one being deliberately changed by the scientist. 

• dependent variable

• independent variable

• data

• control group

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

• Dependent

• Independent

• Control

• Following

Tags

NGSS.MS-PS3-4

In an experiment, a variable is...

• Something that remains the same.

• Something that is changed.

• A constant

• The hypothesis

In an experiment, the constant, or control, is...

• Something that is changed.

• What you're measuring.

• Something that does not change.

• Your conclusion.

Tags

NGSS.MS-PS3-4