As part of our PYP Unit of Inquiry on investigation, students got the opportunity to pretend to be forensic scientists and use evidence to determine the answer to what could be a murder mystery!
We began by examining the crime scene up on Level 5. Students then collected the evidence and carefully recorded information about each piece they found.
We began setting up a clue board and then went back to the evidence to conduct some crime labs or forensic tests to give us more information.
Yesterday, students conducted 5 different crime labs:
1. Brown Stain test = Students did a simple chromatography test to determine if the stain on a paper towel was from a felt pen or food coloring.
2. Cola test = Students used pH (or litmus) paper to determine if anything had been added to the victim, Felix’s, cola.
3. Fingerprint test = Students examined fingerprints on Alfredo and Felix’s cups.
4. Smell test = Students smelled the colognes/perfumes of four of the suspects to determine which was the one they found on the torn towel at the crime scene.
5. Thread test = Students burned both cotton and wool threads and examined how they burned in order to identify mystery threads found at the crime scene.
Today, students conducted the 5 remaining crime labs:
6. DNA testing = Student examined the DNA of all the suspects and the victim to determine whose hair was in the comb at the crime scene.
7. Ice cube test = Students used the pH paper again to determine if anything had been added to the melted ice cubes found at the crime scene.
8. Secret Note = Students had to piece together a torn up note and then identify the writer based on handwriting samples.
9. Powder study = Students added drops of iodine to 5 different powders to identify the powder found on the shoes of two of the suspects.
10. Tape lift test = Students did a tape lift on all of the suspects’ clothes to find evidence such as grass, human hair, dog hair, wool, and cotton thread. Does the evidence match with what they said they had been doing?
Tomorrow students will be taking part in a mock trial of one of the suspects. We have determined that the most evidence can be found against Kendra. Students will be taking on the role of the judge, suspects, prosecuting attorneys, defending attorneys, and jury. Is Kendra innocent or is she guilty?