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Diseases Science Fair Project

Comparing Obesity Rates

Comparing Obesity Rates | Science Fair Projects | STEM Projects
Are African-American teenagers more likely to be obese than Caucasian teenagers? This science project will measure the Body Mass Index (BMI) of 50 African-American boys and girls, and 50 Caucasian boys and girls, aged 15 to 18, to find out.


The hypothesis is that there is a higher percentage of obese African-American students than Caucasian students, within the age band of 15 to 18 years.

Method & Materials

You will separate the participants into four groups: 50 African-American boys, 50 African-American girls, 50 Caucasian boys, and 50 Caucasian girls. You will measure each participant's height and weight to calculate their BMI.
You will need a measuring tape, a flat wall, a weighing machine, and one roll of masking tape.


The results showed that there was a higher percentage of obese African-Americans than Caucasians. There was 38% obesity amongst African American boys and 34% amongst African-American girls, compared to 28% obese Caucasian boys and 22% obese Caucasian girls.

Why do this project?

This science project is interesting because it looks at the differences in obesity rates between two different racial groups.

Also Consider

Consider comparing the rate of obesity amongst Hispanic-Americans and African-Americans. You could also compare the waistlines of the participants.

Full project details

You can find additional information and details for this science fair project here. Have fun exploring!

Related videos

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