Which Fingerprint is Most Common?

By Laura Hospitál on Jul 06, 2015

This science project was done by Alicia, who is a student at Texas School for the Blind and Visually Impaired (TSBVI).
 
 
Alicia is very interested in forensics and wanted to complete a science project related to forensics. 
 

Question

What is the most common fingerprints on humans?
  1. Describe the problem.  What is the most common fingerprint in humans?
  2. Gather information.  (Research) There are three types of fingerprints The three types of fingerprints are Whirls, loops, and ridges.  We found that the most common one was the loops with sixty to sixty five percent.  We also found out that whirls is the next common fingerprint with thirty to thirty five percent.  The least common would be arches or ridges with five percent.

Resources

Hypothesis

The most common one in this school will be the loops.
 
image of APH Feel and Peel stickers
 

Materials

 

Procedure

Phoresics Proceedure
  1. Gather all materials.
  2. Wipe your fingers before placing your fingers on the ink pad.
  3. Place your finger on the ink pad or powder.
  4. Place your finger on a sheet of paper (Be gentle while placing your finger on the sheet of paper.)
  5. Take the fingerprints of 15-20 students and staff.
  6. Label the fingerprints with sighted assistance using APH tactile symbols.  See ordering info in materials section.
  7. Count the number of each type of fingerprint and record data

student getting finger printedResults

Fingerprint results Loops:  9 Whirls:  6 Ridges:  2

Conclusion

My hypothesis was correct. The loop was the most common fingerprint.  

NGSS Standards:

Plan and conduct an investigation individually and collaboratively to produce data to serve as the basis for evidence, and in the design: decide on types, how much, and accuracy of data needed to produce reliable measurements and consider limitations on the precision of the data (e.g., number of trials, cost, risk, time), and refine the design accordingly. (HS-ESS2-5)
 
finger print collage
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