|Time Required||Average (6-10 days)|
|Material Availability||Readily available|
|Cost||Very Low (under $20)|
AbstractIf someone is smiling, it means they're happy, right? Well, not always. Sometimes people smile to be polite, or because they want to "appear" happy or friendly for social reasons. How easy is it to spot which smiles are genuine and which are fake? Try this science fair project to find out!
Discover whether people can accurately determine if a smile is genuine or fake.
Sandra Slutz, PhD, Science Buddies