It means that except for the independent variable (the only factor that you change) you remain the other variables constant. To keep the control variables the same. Then this is a controlled experiment (fair test).
Hope this helps :)
because other conditions could affect the dependent variable
Portugal
They cannot be controlled. Tornadoes are a force of nature.
Britain controlled Palestine after WW2
No
By man-made/ animal insulin injected into a person to control one's blood glucose levels.
Hypertention can be cotrolled with exercise, diet, and when it's nececcery antihypertensive drugs.which are Betablockers, ACE inh., calcium blockers
yes,you go in your house there is a white thing.Go up to it and press A.it will say.it`s a wii and it is cotrolled by a wii remote!
Many democrats were elected to the House in 2012. The last time thet cotrolled the House was 2004 to 2008.
Health and safety ....under the influence of a cotrolled sustance.
Life is an experiment. When you die, that experiment is over.
The kite experiment was a scientific experiment