Experiment Design Diagram (EDD) format
1.
Pick a topic:
2. Identify DV (Dependent or Responding Variable):
3. Identify IV (Independent or Manipulated Variable):
4.
Write a scientific question:
How does (IV) ___________________affect (DV) ________________?
5.
Identify 8 CVs (Constant Variables):
6. Write a title for your experiment:
The effect of (IV)_________________ on the (DV)________________.
5. Write a hypothesis for your experiment:
If the (IV) __________________ is (action word showing how IV is going to be
“changed”) ___________________ then the (DV)________________ will (your
prediction). This will happen because (scientific reason based on your research).
6. Start planning your experiment.
• What is your IV? Give units (metric system) if applicable.
• Be specific in each case {e.g. IV = temp. (
o
C). Then each case might be
10
o
C, 20
o
C, 30
o
C etc.}
• How many times will you repeat your experiment? (Minimum 3)
• Why is it important to repeat your experiment?
EDD format- EXAMPLE
IV: Size of meteor (cm)
DV: Diameter of crater
CV:
• Height meteor is dropped from
• Surface the material is dropped on
• Container the surface material is in
• Method of measurement
• Same number of trials/drops
• Density of surface
• Same location and same day for the experiment
• Same angle of drop
Title:
The Effect of the Size of Meteor on the Diameter of the Crater
Hypothesis:
If the size of the meteor is increased then the diameter of the crater will be the largest for
the 4cm meteor. This will happen because the 4cm meteor has a greater mass, which allows for
a greater force of impact.
Plan:
• Size of an object (cm)
• 1.5cm, 2.5cm, 4cm
• # of trials: 24
• We repeat the trials to insure accurate and consistent results.
