PBS Activities 1.1.1-1.1.3

Arjun, Abigail, and Zoe are playing a trivia game. Arjun draws a card and reads the question aloud to the group: 'What is the outermost layer of hair called?'

• Keratin

• Cortex

• Cuticle

• Medulla

Isla is a forensic scientist and she found a fingerprint at a crime scene of a recent burglary. She needs to match the fingerprint pattern to the suspect's database. What type of fingerprint pattern is it likely to be?

• Whorl

• Loop

• Arch

• Helix

Liam, Hannah, and William are playing detectives in their school play. Liam, who is playing the role of a forensic scientist, found a fingerprint at a mock crime scene. He needs to match the fingerprint pattern to its type. Can you help him?

• Loop

• Whorl

• Helix

• Arch

Harper, Charlotte, and Avery are playing detectives in their school play. Harper, who is playing the role of a forensic scientist, found a fingerprint at the mock crime scene. She needs to match the fingerprint pattern. What pattern could it be?

• Loop

• Whorl

• Helix

• Arch

During a school project, Luna, Zoe, and Ethan are role-playing as detectives investigating a suspicious incident in their school. Which of the following is NOT one of the first steps they would take in their investigation?

• Interview classmates and teachers to establish a theory of the case.

• Examine the incident scene and mark any evidence

• Sketch a diagram of the incident scene

• Perform DNA analysis on all biological samples found at the scene

During an investigation of a theft at a local art gallery, detectives gathered the following evidence from the scene: (1) Type A blood (2) Dyed brown hair (3) Whorl pattern fingerprint (4) Shoe print. The prime suspect, Michael, was found to have: (1) Type A blood (2) dyed brown hair (3) low similarities in fingerprint match (4) hiking shoes.

Which of the following could be used to potentially rule out Michael as the suspect?

• The fingerprint

• Blood type A

• Dyed brown hair

Isla, Abigail, and Grace are playing detectives in their school play. Isla, playing the role of a forensic scientist, finds a fingerprint at the mock crime scene. Besides ridge patterns, she needs to use another pattern to match this fingerprint. What is this additional pattern called?

• Medulla

• Keratin

• Whorls

• Minutiae

During a soccer game, William notices that Ethan is breathing heavily after running for a long time. Oliver, who is studying to become a doctor, decides to measure the number of breaths Ethan takes per minute. What is this measurement called?

• Heart Rate

• Skin Conductivity

• Respiration Rate

• Blood Pressure

During a school science fair, Sophia, Liam, and Ethan decide to demonstrate the working of a polygraph machine. What does the polygraph machine measure in their demonstration?

• Detects eye movement of the person tested

• Detects lies from physiological responses of the person tested

• Detects the severity of an emotion of the person tested

• Detects differences in brain activity of the person tested

During a criminal investigation, Detective John is analyzing polygraph results of a suspect. What is John specifically looking for in the results?

• The suspect's heart rate will increase when telling a lie.

• The suspect's breathing rate will increase when telling a lie.

• The suspect's breathing rate will decrease when telling a lie.

• The results of the relevant question are different from the results of the control question.