ForensicScienceActivities - ForensicScience Activities...

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Forensic Science   Activities Fingerprinting   | Shoe  Prints   | Lip Prints   | Handwriting  analysis | | Chromatography |   Fingerprinting Have  students  read  the  handout   Fingerprinting  Background  Information .  Divide  the  class  into groups  of 4-5 students.   Give  each  student  a she et  where  they  can  record  their group's  fingerprints.   The  easie st  way  to   record  fingerprints  is to have  students   rub  an  area  on  a  piece  of paper  with a pencil.   The  students  then  rub  their fingers  over  the  graphite  on  the  paper.   Next, apply  a   small  piece  of tape  to the  finger,  lift and  place  the  tape  on  the  she et  of paper.   You  will then  have  a  record  of each  student's   fingerprints.   You  may  also  place  the  tape  on  a  she et  of overhead  projector  film and  then  you  can  project  th   fingerprint for the  entire  class  to see.   Make  a  copy  of the   fingerprinting  record  she et  for each  group  so  that you  may  use  it in   this  activity and  future  crimes.   Choos e  one  set  of fingerprints  to be  those  of the  culprit in each  case  the  students  s   fingerprints. The case: Yesterday,  som e on e  put salt in the  sugar  bowl  on  the  teacher's  table  in the  lunchroom.   Later  in the  day   a  large  jar containing  a   mysterious  white  substanc e  was  found  stashed  behind  the  curtain  on  the  stage.   The  substanc e  was  later  determined  to be  sa    Upon  investigation,  a  set  of fingerprints  was  found  on  the  jar.   Your  job  is to examine  the  fingerprints  and  decide  if anyon   your  class  is the  culprit in this  crime. .   Additional Fingerprinting Activities:
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Dusting for fingerprints:  Rub your finger across your nose or through your hair.  Make a fingerprint on a clean glass.  Sprinkle  cocoa powder over the glass and brush the powdered area with a fine paintbrush to remove the excess powder and expose the  print.  Place a piece of transparent tape over the print and lift the print from the glass.  If you use a dark glass or piece of  plastic, use talcum powder instead of cocoa to lift the print. Give each student a small piece of metal or plastic.  Have them rub their finger over their nose and make a fingerprint on the  object.  Place the object in a jar and place several drops of superglue into the jar.  Be sure not to get the superglue on the print.  
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This note was uploaded on 11/09/2011 for the course CHEM 100 taught by Professor Sdfsdf during the Winter '08 term at BYU.

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ForensicScienceActivities - ForensicScience Activities...

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