1. Designing an Experiment
Project

2. Magazine Ad Activity Designing well-controlled experiments is the key to successful science. Students will use an advertisement of a product to test the claim of the ad with an experiment. Individually in the Notebook, every student will create and complete the Experimental Graphic Organizer. As a Group on the poster, there will be the Experimental Graphic Organizer, Procedures, and a Drawing of your Experiment. (Use Handouts to complete assignment)

3. Experimental Graphic Organizer
Title
Page 24-25
Turn notebook sideways
Use your ad to fill in the boxes
Independent Variable(s)
Paragraph that describes the IV and how it is measured.
What is the IV?
How will it be measured?
What SI Units will be used?
What are the IV groups that will be tested?
How many times will you repeat the trial?
Dependent Variable(s)
Paragraph that describes the DV and how it is measured.
What is the DV?
How will it be measured?
What SI Units will be used?
Example: The product to be tested
Shout stain remover
Pg. 25
Hypothesis
If….
Then…
Include the specific relationship between the IV and DV.
Example: If shout stain remover is applied to wine stains before the wash cycle, then the wine stains will disappear.
Constants
List the parts of the experiment that must be kept the same from trial to trial in order to ensure that the results change due to the IV. Be specific. Example: critically specific measurements or concentrations.
Control Group
Describe the control group and explain why it was picked as the control group. How does it determine a baseline for comparison?
Ex: the group the experiment is not conducted on
Pg. 24
Quick Sketch of Lab During Data Collection
Clearly represent the variable and constants.
Label and write a caption

4. Procedures
Watch the following video so you know how to write procedures correctly:

5. Watch the following video and write down the dependent and independent variables definitions onto your handout
Variables

6. Scientific Method Revisited
Observation: Some type of phenomena
Question: Stated in a way that it could be investigated scientifically
Hypothesis: A suggested testable explanation for the phenomena written in an "If..., then..." format
Plan out experiment: A list of procedures (think: Peanut Butter and Jelly Sandwich video)
Analysis: Analyzing the collected data and then present it in graphs and tables
Conclusion: Must also address the original hypothesis; was it accepted or rejected?

7. Variables Which group gets the treatment? Experimental groups
Which group does not receive the treatment?
The control group
Variables:
Only ONE independent variable
Variables that stay the same:
Constants; ex.: applicator, models, environments, etc. 

8. Graphing
X axis contains the independent variable (doesn't respond; ex.: %solutions)
Y axis contains the dependent variable (responds; ex.: # of barnacles for each solution)
D.R.Y. M.I.X.
D: Dependent variable                                         
R: Responding variable          
Y: axis                                   Effect
M: Manipulated variable
I: Independent variable           Cause
X: axis

9. 24-25
9/5