Mythbusters: Step 5 Experiment

Experiment- The fun part! Design a test or procedure to find out if your hypothesis is correct. In our example, you would set up grass seeds under a green light bulb and seeds under a red light and observe each for a couple of weeks. You would also set up grass seeds under regular white light so that you can compare it with the others. You will have to write down exactly what you did for your experiment step by step.

• Independent Variable
  This is the part of your experiment that you will test (vary) to answer your hypothesis. In the example above, the independent variable would be the different colors of the light bulbs.
• Dependent Variable
  This is what occurs in response to the changing independent variable. In our example the Dependent Variable is how much the grass seeds grow.
• Control
  The control should be the part of the experiment where you do not include the Independent Variable. In our example, grass seed that is growing under the white (uncolored) bulb would be your control. The control lets you compare your results in the experiment.