Learn about how crime scene investigators use chemiluminescence to test for blood stains.
- Students will observe how using a special luminol formulation detect blood stains that are naked to the human eye.
- Aligned to NGSS Practices
- Performance expectations: MS-PS1-2
- Disciplinary core ideas: PS1.A, PS1.B
- Cross cutting concepts include Patterns
- Engineering practices include analyzing and interpreting data
Crime scene investigators are called to the scene of a possible violent crime. They examine the scene for evidence, such as fingerprints, hair, fibers, etc. After collecting the evidence, they notice there is no visible blood. Someone takes out a spray bottle and begins to spray the area with a liquid. After the area is covered with spray, they turn out the lights. A strange, faint glow appears in certain areas of the scene.
Learn how luminol is used in scenes like this everyday. The special luminol formulation does not require a separate hydrogen peroxide catalyst. Simply re-hydrate and use with the simulated blood hemoglobin to show your class. This activity includes an Instruction Manual with suggested activities. Kit contains enough material for several demonstrations.
Delivery information: Kit includes instructional manual and SDS booklet.
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