Saturday, March 5, 2011

Crime Lab/Forensic science....

  In our science class we had a special quest speaker, Detective Brocky (former detective) who spoke to us about crime scenes and what to look for in terms of evidence.  The presentation was very informative.  I learned there are three types of fingerprints, not the feature, but how fingerprints can occur.  There are latent, patent, and plastic fingerprints.  Also a person cannot determine the age of a fingerprint unless physically present witnessing.  To find a fingerprint using powder is the oldest and least sophisticate method, but still good.  
An interesting fact I learned from the Crime scene and Contamination power point was how 99.9% of human DNA is the same for everyone; therefore, only 0.10% makes you unique.  WOW! Also I knew we were similar to chimpanzees, but we have 99% of DNA the same as them.  Double WOW!

Later in the day, after the presentation, students from Block 3 presented a Project Learning Tree Lesson.  It was about keeping our planet clean and the types of pollutants we create.  It was a very well done lesson, and I really liked the incorporation of the video, crime scene (wanted) idea.    




After that we went to do small activities in the PAC where we did a fingerprint lab and a hair evidence lab using the proscopes.  It was really cool seeing your hair with the proscope and comparing it to a classmate whose hair is a different color.  

 
<--------My hair
My friends hair-------->



Overall it was a fun, exciting, informative and busy class. :)

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