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Blood Stains at the Crime Scene—Forensic Laboratory Kits

By: Gary Schiltz, Retired, Glenbard West H.S., Glen Ellyn, IL

With the Blood Stains at the Crime Scene Forensics Laboratory Kits, analyze spatter patterns and, like a criminalist, use the trends to analyze the origin of unknown blood stains.

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Analysis of blood stains at a crime scene can be critical in solving a crime. Often the blood type can be determined and matched to potential suspects. Students will utilize simulated blood and blood typing sera to learn the principles of blood typing procedures. They will extract and type blood from items found at a mock crime scene and determine possible connections to potential suspects. The materials can be easily adapted to your own crime scene scenario and can be used to produce crime scene stains of your own design. No blood or blood products are used. Complete for 30 students working in pairs. Super Value Kit is complete for 5 classes of 30 students working in pairs.

Correlation to Next Generation Science Standards (NGSS)

Science & Engineering Practices

Developing and using models
Planning and carrying out investigations
Analyzing and interpreting data
Constructing explanations and designing solutions
Engaging in argument from evidence

Disciplinary Core Ideas

MS-PS1.A: Structure and Properties of Matter
MS-PS1.B: Chemical Reactions
MS-LS1.A: Structure and Function
MS-LS3.A: Inheritance of Traits
MS-LS3.B: Variation of Traits
HS-LS1.A: Structure and Function
HS-LS3.A: Inheritance of Traits

Crosscutting Concepts

Systems and system models
Patterns
Structure and function

Performance Expectations

MS-PS1-2: Analyze and interpret data on the properties of substances before and after the substances interact to determine if a chemical reaction has occurred.