Science project
Latent Fingerprints
Superglue fuming is a very common technique used by forensic specialists across the world to develop fingerprints that can't be immediately seen with the naked eye, known as latent fingerprints. The fumes from the superglue will adhere to the amino acids left behind by the fingerprint secretions. This is a valuable technique that can easily be replicated.
Problem:
How does a person develop latent fingerprints on a non-porous object?
Materials:
- Small, plastic container (approximately 8”X10”) with lid
- Bottle of superglue
- Clear plastic wrap
- Two aluminum tart shells
- Lamp with a shade
- Compact disc
Procedure:
- Run your hand through your hair and place a few fingerprints on the compact disc
- Place the disc in the center of the plastic container
- Place seven drops of Superglue in one of the aluminum tart shells and place it in the corner of the plastic container.
- Fill the other aluminum tart shell with hot water and place it in the opposite corner of the plastic container.
- Cover the entire plastic container with plastic wrap and then place the lid over of that
- Place the container on top of a lamp for 15 minutes. (If the superglue has fumed properly, you will notice that the fingerprints have turned white. Allow to dry for a minimum of three hours.)
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Education.com provides the Science Fair Project Ideas for informational purposes only. Education.com does not make any guarantee or representation regarding the Science Fair Project Ideas and is not responsible or liable for any loss or damage, directly or indirectly, caused by your use of such information. By accessing the Science Fair Project Ideas, you waive and renounce any claims against Education.com that arise thereof. In addition, your access to Education.com's website and Science Fair Project Ideas is covered by Education.com's Privacy Policy and site Terms of Use, which include limitations on Education.com's liability.
Warning is hereby given that not all Project Ideas are appropriate for all individuals or in all circumstances. Implementation of any Science Project Idea should be undertaken only in appropriate settings and with appropriate parental or other supervision. Reading and following the safety precautions of all materials used in a project is the sole responsibility of each individual. For further information, consult your state's handbook of Science Safety.
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