Tuesday, September 30, 2008

Fingerprinting

What do you always have but always leave behind?  Your fingerprints!  Most people's fingerprints look like a whorl, loop or arch. What does your index finger look like? whorl loop arch




One of the most exciting activities that we took part in during Friday's gifted class was "fingerprinting".  We paired together, and using real police fingerprinting powder, took one another's fingerprints.  We began by cleaning our tables in order to wipe them clean of any prior fingerprints.  Each partner then placed their prints all over the table.  Using brushes, we carefully dusted the table with the fingerprint powder in order to reveal the prints.  Lastly we lifted the prints that we found using a piece of tape and laid them on a contrasting color (white) paper.  We will spend next week (some of us already did so) inspecting the prints to identify which partner they belong to.  How do you tell?    Each indiviual's prints are completely unique!
Take a look at our detectives at work!


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