Though the use of blood type in a forensic investigation is not enough to prove guilt, it may aid in exonerating a potential suspect. In this activity, students act as lab technicians and assist investigators by examining evidence collected at a crime scene. Students first use a presumptive blood test to determine if a substance on a stained piece of cloth may be blood, and then determine the blood type of a sample collected at the scene. Students then compare their results to those of samples provided from two suspects. Kit contains enough materials for 10 groups. Teacher’s Manual and Student Study Guide copymasters are included. Aligned to the Next Generation Science Standards (NGSS)* Disciplinary Core Ideas: PS1.A; PS1.B; LS1.B; LS3.A; LS3.B Performance Expectations: MS-PS1-2; MS-LS3-2 Cross Cutting Concepts: Structure and Function; Cause and Effect Engineering Practices: Developing and Using Models Kit Includes: 40 Blood Typing Trays 10 Cotton Swabs 1 pc Cloth 1 pkg Toothpicks 1 btl Ethanol, 70% 1 btl Blood Detection Reagent #1 1 btl Blood detection Reagent #2 1 pkg Toothpicks 4 Simulated Blood Samples Victim Suspect #1 Suspect #2 Crime Scene Evidence 1 btl Simulated Anti-A Serum 1 btl Simulated Anti-B Serum 1 btl Simulated Anti-Rh Serum DOT Info: Small quantity exemption 173.4 THIS PACKAGE CONFORMS TO 49 CFR 173.4 for domestic highway or rail transport only *”Next Generation Science Standards” is a registered trademark of Achieve. Neither Achieve nor the lead states and partners that developed the Next Generation Science Standards was involved in the production of, and does not endorse, this product. WARNING: This product can expose you to chemicals including Phenolphthalein and Methanol/Methyl isobutyl ketone, which are known to the State of California to cause cancer and reproductive harm. For more information go to http://www.P65Warnings.ca.gov.