The zip file contains hair Powerpoint notes discussing the basics of hair evidence. The notes detail the basic microscopic anatomy of hair (cuticle, cortex, and medulla characteristics) and focuses on the microscopic differences between animal and human hair, The zip file also contains a pdf file that includes 3 lab activities and a teacher's guide including a detailed materials list. The first lab focuses on human hair. The second lab focuses on animal hair. The third lab is actually part lab practical. The teacher directions/materials list can be downloaded for free (preview file).