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WorksheetsBlood spatter
Total questions: 34
Worksheet time: 23mins
What blood spatter pattern is seen in the picture?
Passive / Low velocity
Medium Velocity
High Velocity
The drop shown above would have more than likely been dropped from an angle of
90 (straight down)
50 (slightly tilted sideways)
30 (very tilted sideways)
10 (almost flying flat parallel across the paper / ground)
Which of the following CANNOT be determined from blood spatter? (Choose ONE answer only.)
Exact Weapon Used
Manner of Death
Velocity
Area of Origin
What carries oxygen around the body?
Plasma
Red Blood Cells
Platelets
White Blood Cells
What is the function (job) of the white blood cells?
To transport oxygen around the body.
To carry dissolved sugars.
To clot and cover wounds like cuts and grazes.
To release antibodies to help destroy infections.
What is plasma?
only white blood cells
only red blood cells
fluid part of blood
hemoglobin
If blood is found to have both A and B antigens on the cell surface it is typed as:
A
B
O
AB
O blood type is also known as the
universal acceptor
universal donor
lease effective blood type
the positive protein
What type of bloodstain pattern is this?
Passive
Projected
Transfer or Contact
Estimate from what height was this blood dropped?
really high
medium height
low height
an angle
Which one of these was dropped from the biggest angle (as straight down as possible)?
1 (top left)
4 (top right)
7 (bottom left)
9 (bottom right)
AB blood type is also known as the
universal acceptor
universal donor
lease effective blood type
the positive protein
What are the classes / types of human blood? (Choose ALL that apply.)
A
B
C
AB
O
What would happen if someone with type A blood gets a transfusion with type B blood?
The blood would not agglutinate and the person would be healthy.
The blood would agglutinate and person could die.
What is Luminol?
Chemical that shows blue glow in the presence of blood.
Test that uses phenolphthalein that turns bright pink in the presence of blood.
Easy test strips that test for the presence of hemoglobin.
True or False: If someone has washed the blood away with soap, then forensic scientists will still be able to see the where the blood was with luminol.
True
False
True or False: Human red blood cells are usually larger than animal red blood cells.
True
False
A blood spatter with a tail can tell us the origin (direction) of the spatter. Did the spatter come from the larger side of the blood droplet or the thin long tail side of the blood droplet?
The origin came from the larger side of the blood droplet.
The origin came from the thin long tail side of the blood droplet.
