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The effect of surface temperature on fingerprintsFeatured science projectScience project video

Conclusion

The hypothesis that fingerprints obtained from a surface with lower temperature will be clearer has been proven to be true.

Fingerprints are now used for identification of individuals and at crime scene investigations. Some banks even use fingerprint detectors to verify the identity of a person before financial transactions are permitted. Access to certain restricted areas may also be controlled by fingerprint scanning. Sometimes, crossing country borders also requires fingerprint identification.
 

Also consider

The science fair project may be repeated by using different types of surfaces like marble, PVC or wood finishing.
 

References

Fingerprint - http://en.wikipedia.org/wiki/Fingerprint

Fingerprinting - http://www.cyberbee.com/whodunnit/dusting.html
 

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Complexity level:
4
Project cost ($):
10
Time required:
4 hours for preparation, 1 hour to carry out the science fair project experiment
Material availability:
Easily obtained at a supermarket
Safety concerns:

None