Wednesday, November 24, 2010

Field Trip to RMSC

Our field trip was a success! The students really enjoyed the Rochester Museum and Science Center. We even had time to explore other exhibits after our CSI exhibit. Enjoy the pictures below!


Briefing before the crime scenes

Crime Scene #2

Crime Scene #1

Louis 
Howard
Teresa
Xavier and Olivia

Beth, Tarin, Logan, Howard looking at autopsy results




The group outside of the museum

Monday, November 22, 2010

Murder and a Meal Lab

Today, students were called to the task of determining the last meal a murder victim ate. They were provided with the "stomach contents" of the murder victim, and performed tests to determine whether the victim had eaten protein, carbohydrates, lipids, or sugars. They then decided whether the victim last ate at Pudgie's Pizza, Gino's Italian Restaurante, or Buffalo Wild Wings, based on the tests they performed. Enjoy the pictures below!
All the materials: The "stomach contents" in the beakers, Iodine Reagent (for starch test), Biuret Reagent (for protein test), Benedict's Solution (for glucose test), and brown paper bags (for lipid test)
 Mike, a little grossed out by the smell of the "vomit!"
Jenna adding Biuret reagent to test for proteins

Beth and Justin performing protein test

 Dylan and Bryan putting their test tube in the hot bath
 Test tubes in the hot bath to see the vomit reacts with Benedict's solution, which would show the presence of glucose
All the test results from left to right: Negative test for protein, negative test for glucose, positive test for starch, and positive test for lipids (stain left on brown bag)

Field Trip Tomorrow, 11/23!

Tomorrow, our forensic science classes will be traveling to the Rochester Museum and Science Center for a CSI: The Experience Exhibit. To preview the exhibit and the crimes we will be solving, click the link below!
http://www.csitheexperience.org/about_preview.html

For forensics activities related to this exhibit to try with your family, go here:
http://forensics.rice.edu/html/famguide.html

Friday, November 12, 2010

Updates 11/12


Hello everyone,
Recently in Forensics, we've been learning about BLOOD. We discussed blood spatter analysis, and did a lab where the students experimented with how height, angle, speed, and target surface affects blood spatter. The pictures below show some students doing their experiments.

Katie and Sharon testing different weapon transfer patterns and how it compared to the stain found on a cloth at the scene of the crime


Brittani testing the effect of different surfaces on blood spatter
Dave, Rodney, and Shayne testing how angle of impact influences blood spatter
Theron and Dylan testing angle of impact

Daryl, Taylor, and Hannah testing the effect of height on blood spatter


Donald, Harley, and Anthony analyzing the difference between high velocity impact spatter and medium velocity impact spatter