What's Your Blood Type?

Source Institutions

Add to list Go to activity
Activity link broken? See if it's at the internet archive
In this activity, learners perform a simulated blood test procedure. They perform control reactions and test reactions, then use their observations to determine the blood type of different "suspects." This activity is currently used in the Crime Scene Chemistry unit of Oregon Museum of Science and Industry's Chemistry Lab, but can be adapted to other educational environments, including a home chemistry lab. Cost estimates are per 100 learners. For safety reasons, this activity works best as a demonstration for younger audiences.

Quick Guide

Preparation Time:
10 to 30 minutes

Learning Time:
5 to 10 minutes

Estimated Materials Cost:
$1 - $5 per group of students

Age Range:
Ages 11 - adult

Resource Types:
Activity, Demonstration, Experiment/Lab Activity


Materials List (per group of students)

  • KOH (potassium hydroxide) (keep 20g on hand)
  • FeCl3-5H20 (ferric chloride hexahydrate) (keep 30g on hand)
  • water
  • red food color
  • yellow food color
  • well plate
  • two 75mL squeeze bottles
  • five 125mL squeeze bottles
  • two one-liter bottles
  • one 500 mL bottle


  • Life Sciences
    • Cells
    • Human Body
      • Circulation
  • Physical Sciences
    • Chemistry
      • Chemical Reactions

Informal Categories

  • Crime Science
  • Science Festivals Activity


To use this activity, learners need to:

  • see
  • see color
  • read
  • touch

Learning styles supported:

  • Involves hands-on or lab activities


This resource is part of:

Access Rights:

  • Free access



Funding Source:

  • National Science Foundation