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Grade 9College. A large amount of trace evidence is collected during the investigation of the cabin. Recent additional trace evidencegathered from the Tumbling Water Land Development Co. truck discovered in New Mexicoarrives. Students are tasked with analyzing hair and fiber evidence. Using the kit, students learn about evidence handling and comparison.
The manufacturing process of tool-making leaves patterns embedded in each tool's surface. These unique patterns become evidence when criminals use tools to commit a crime. Toolmark identification determines if a particular tool produced a mark.
The Complete Kit has everything your students need to become expert analysts of tools and the marks made by them. With 4 lab exercises based on actual cases encountered in crime laboratories and a detailed PowerPoint® lecture on the manufacturing of tools, students can experience the same type of training given to forensic scientists. Kit also includes enough materials for 30 students and a test bank of questions based on the lecture.
To enhance your lesson, purchase the Toolmark Poster (item #212161), which illustrates different tools and their respective marks.
Hairs and fibers are removed from trace-evidence collection tape by dissolving tape adhesive in water, then filtering hairs and fibers from the resulting solution. Next, students characterize the hairs and fibers using microscopy. After processing all the evidence, students attempt to match hair and fiber types from the truck to those found in the cabin. The kit includes supplies for up to 30 students working in 6 groups and is matched to National Science Education Standards. Fully illustrated teacher's manual provides technique background. Note: Kit can be shipped and stored at room temperature.
|Cabin Evidence Collections||30||Included|
|Suspect Evidence Collections||12||Included|
|Truck Evidence Collections||6||Included|
|Data Collection Worksheets||Included|
|Microscope Slides with Coverslips||144||Included|
|Bottles of Mounting Media||6||Included|
|Filters||Needed, Not included|
|Funnels||Needed, Not included|
|Filter Paper||Needed, Not included|
|Lab Gloves||Needed, Not included|
|Light-Transmitting Microscopes||12||Needed, Not included|