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Kastle-Meyer Presumptive Blood Testing—Student Laboratory Kit

By: The Flinn Staff

Item #: AP7762 

Price: $35.58

In Stock.

With the Kastle-Meyer Presumptive Blood Testing Forensics Laboratory Kit, perform the Kastle-Meyer test to check for the presence of real blood.

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This item can only be shipped to schools, museums and science centers

Product Details

Students feel like authentic crime scene investigators when they test for the presence of real blood! Four evidence samples, that may contain blood, are taken from a crime scene. Students perform the Kastle-Meyer test on each sample as a presumptive test to determine if further examination is needed. Learn about the benefits and limitations of presumptive blood testing to ignite further curiosity about forensic testing.

Complete for 30 students working in pairs. Approximately 20 mL of real blood are required, but not included. This can be obtained from a local butcher.


Materials Included in Kit:  
Hydrogen peroxide, McKesson©, 3%, 4 oz
Kastle-Meyer reagent, 100 mL
Simulated blood, 100 mL
Cotton swabs, pkg/75, 2
Ketchup packet, 7 g, 3
Pipet, Beral-type, graduated, 30
Tomato paste, can, 6 oz

Correlation to Next Generation Science Standards (NGSS)

Science & Engineering Practices

Developing and using models
Analyzing and interpreting data
Obtaining, evaluation, and communicating information

Disciplinary Core Ideas

MS-PS1.A: Structure and Properties of Matter
MS-PS1.B: Chemical Reactions
HS-PS1.A: Structure and Properties of Matter
HS-PS1.B: Chemical Reactions
HS-PS2.B: Types of Interactions

Crosscutting Concepts

Cause and effect
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.
MS-PS1-3. Gather and make sense of information to describe that synthetic materials come from natural resources and impact society.
HS-PS1-1. Use the periodic table as a model to predict the relative properties of elements based on the patterns of electrons in the outermost energy level of atoms.
HS-PS2-6. Communicate scientific and technical information about why the molecular-level structure is important in the functioning of designed materials.