1. Is A Person Showing A Real Smile Or A Fake Smile?
By: Jenna Bloomfield

2. Hypothesis
If we test a fake smile vs. a real smile then the real smile will contract more muscles.

3. Procedures 1. Get 2 people of the same age range (11-13)
2. Tell each person a funny joke
3. Record their smile
4. Tell each person a non-funny joke
5. Record their smile
6. Compare your data

4. Materials 2 11-13 year olds Funny joke Non-funny joke
Chart to record it on

5. Variables Independent: The type of joke
Dependent: If their smile is fake or not by measuring facial muscles
Constant: Age range
Funny joke
Non funny-joke
To tell joke at the same time

6. Graph When Kimmy was told the funny joke she had a
big, wide smile that showed her teeth and when Taylor was told the funny joke she had a
nice smile that showed her teeth. When I told Kimmy and Taylor the non-funny joke, they both had a sheepish grin, but Kimmy’s grin didn’t show her teeth and Taylor’s grin did show her teeth.

7. Conclusion
1. The question was “Is a person showing a real smile or a fake smile?”
2. I got two people, then told them jokes, and finally recorded their smiles.
3. The real smile contracts more muscles.
4. My data supports my hypothesis because a real smile contracts more muscles that a fake smile.
5. I learned how to tell a real smile from a fake smile.
6. No errors occurred and I had no problems. I wouldn't do anything differently.