The girls will be able to identify the facial expressions more accurately than the boys.

Facial expression

Facial expression is a form of non-verbal communication where the movement of the muscles and skin on the face are able to convey certain emotions to an onlooker or observer. Examples of facial expressions that are normally encountered are faces of happiness, anger, worry, surprise, fear and sadness. The significance and meanings of facial expressions may vary among different cultures and ethnic groups.

Some facial expressions are made voluntarily to express or convey a certain message to the observer. An example of this behavior is when we greet someone with a smile, or frown to express our disapproval. However, most of the time, facial expressions are involuntary and are triggered by an emotional response to an event. In such cases, even if we try to hide it, a brief change in facial expression will normally occur before we are able to eventually control or alter the expression.

Facial expressions are also useful for the perceiver because it will enable her to know if something is disturbing or upsetting a person. They provide clues to a person’s true feelings, and may act as a hint to the perceiver to react accordingly.
 

The hypothesis that girls would be able to identify facial expressions more accurately than boys, has been proven to be true.

Facial expressions are a useful way of expressing feelings or one’s emotional state without speaking. Emotions easily expressed can include love, hatred, anger, fear and surprise. Sometimes, facial expressions are used by parents and teachers to indicate to children that they are doing something wrong. Animals also use facial expressions to demonstrate anger, or to protect their territory and offspring.
 

The science fair project can be repeated on students from different age groups.

The experiment may also be repeated with a larger group of students and with a different set of photos.