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ABO Blood Type Game
The following lesson is adapted from the Red Cross ABO Blood Type Game
Materials
8 3.5 oz cups labeled “ A”
8 3.5 oz cups labeled “ B”
8 3.5 oz cups labeled “ AB”
8 3.5 oz cups labeled “ O”
32 pipettes
1 250 ml bottle water plus 15 drops red food coloring, labeled “A”
1 250 ml bottle water plus 10 drops blue food coloring, labeled “B”
1 250 ml bottle water plus 7 drops red + 5 drops blue food coloring, labeled “AB”
1 250 ml bottle water, labeled “O”
15 12-well plates
30 worksheets
Color Concentration for food coloring:
I use the ratio of 5 drops of food coloring for every 100 mL water. So
a 1,000ml beaker or flask would have 50 drops. Set these up ahead of
time. For purple do half red and half blue drops, for green I would
just use the green food coloring at 5/100mL.
Blood Type A is Red (*or Blue)
Blood Type B is Blue (*or Yellow)
Blood Type AB is Purple (*or Green)
Blood Type O is Clear
Background Information
The following information is from the Red Cross
• Almost 40% of the population has O+ blood
• Patients with Type O blood must receive Type O blood
• About half of all blood ordered by hospitals in our area is Type O
• Type O blood is the universal blood type and is the only blood type that can be transfused to
patients with other blood types
• Only about 7% of all people have Type O negative blood
• Type O negative blood is the preferred type for accident victims and babies needing
exchange transfusions
• There is always a need for Type O donors because their blood may be transfused to a person
of any blood type in an emergency
