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Does the gender of a baby affect its preference for toys?Featured science projectScience project video


This science fair project was done to find out if babies prefer toys based on gender. The science project was performed on 4 to 8 month old babies by comparing their preferences for toy trucks or Barbie dolls.


Baby boys will prefer trucks and baby girls will prefer Barbie dolls.

Scientific Terms

Gender, toys


Baby’s gender and preferences

Babies as young as 6 months are believed to be unable to differentiate the gender of others around them. However some studies have shown that baby girls prefer Barbie dolls and baby boys prefer trucks. Some researchers believe that this could be due to the baby’s exposure to sex hormones when they were still in the womb.

Some of the characteristics of baby boys are that they like to see moving things and they are also more hyperactive like kicking and wiggling more often than baby girls. The baby boys are also more emotional and get agitated more easily. However baby boys are less startled by sudden noises compared to baby girls.

As for the baby girls, they are very good at copying and mimicking. They are also better at using their hands and learn to use utensil and pick up toys faster. Baby girls also learn to make eye contact faster and are more attracted to women’s faces. Baby girls are much attuned to sounds, especially human voices and they also learn to speak faster.

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Complexity level:
Project cost ($):
Time required:
1 day to prepare, 2 days for science fair project
Material availability:
Easily found at a toy store
Safety concerns:

Ensure that babies are handled with care, by qualified day care center staff