Blood Spatter Analysis Quiz

What is the purpose of blood spatter analysis?

• To determine the type of weapon used

• To piece together the events that caused bleeding

• To identify the victim

• To establish the time of death

What is one of the first things a forensic investigator should do when examining a blood spatter?

• Take a photograph of the blood spatter.

• Verify that the material is indeed blood.

• Clean the blood spatter.

• Measure the size of the blood spatter.

Tags

NGSS.HS-PS1-3

How can a forensic investigator determine if a material is blood at the scene?

• By sending it to a laboratory.

• By using a magnifying glass.

• By using tests that are portable enough to be used right at the scene.

• By asking witnesses.

What does a forensic investigator determine through the actual spatter analysis of blood?

• The DNA profile of the suspect

• The trajectory of the blood

• The time of the incident

• The type of weapon used

What can be determined by measuring the shape of the bloodstain on a surface?

• The health condition of the victim

• The direction of movement and speed of the blood

• The exact time when the blood was spattered

• The number of people involved in the incident

What do blood drops at a crime scene vary in?

• Color and temperature

• DNA and protein content

• Shapes and sizes

• Volume and viscosity

What shape do blood drops form when hitting a surface due to the cohesion properties of blood?

• Square

• Triangle

• Circle

• Oval

On what does the size of a blood drop depend?

• The type of animal the blood came from

• The color of the blood

• The speed and angle of impact

• The temperature of the environment

According to the general rule, what is the relationship between the energy of the impact and the size of the blood drops in blood spatter analysis?

• Higher energy, larger drops

• Higher energy, smaller drops

• Lower energy, larger drops

• Lower energy, smaller drops

Tags

NGSS.MS-PS3-1

NGSS.MS-PS3-5

What characteristic of blood spatter is associated with free-falling blood?

• It has a high velocity and leaves small drops.

• It has a low velocity and leaves small drops.

• It has a high velocity and leaves large drops.

• It has a low velocity and leaves large drops.