Advertisement Upgrade to remove ads


Any factor that can change in an experiment


A problem the experiment is designed to solve?


Gathering information about the subject of study

Null Hypothesis

Statement that says there is no difference between the results of the control and experimental groups


The activity that test the hypothesis

Constants/Control Variables

Variables that are not allowed to change

Independent Variable

The factor being tested

Dependent Variable

What is measured


Describe the trends and what the graphs are saying about the data collected


What the person performing the activity sees, hears, feels, smells, or taste

Control Group

Experiment with the independent variable left out

Please allow access to your computer’s microphone to use Voice Recording.

Having trouble? Click here for help.

We can’t access your microphone!

Click the icon above to update your browser permissions above and try again


Reload the page to try again!


Press Cmd-0 to reset your zoom

Press Ctrl-0 to reset your zoom

It looks like your browser might be zoomed in or out. Your browser needs to be zoomed to a normal size to record audio.

Please upgrade Flash or install Chrome
to use Voice Recording.

For more help, see our troubleshooting page.

Your microphone is muted

For help fixing this issue, see this FAQ.

Star this term

You can study starred terms together

NEW! Voice Recording