WorksheetsPBS 1.1.3 Traces We Leave Behind
Total questions: 23
Worksheet time: 14mins
Label the part of the microscope. What is part D?
body
foot
objective lens
turret
Label the part of the microscope. What is part A?
eyepiece lens
eyepiece tube
turret
objective lens
Label the part of the microscope. What is part F?
stage
stage clips
body
focus knob
What is part 4?
The one variable in an experiment that is purposely changed by the scientist is the________________.
dependent variable
independent variable
data
control group
Research Question: Does the type of gasoline put in a car affect how fast the car can drive.
What is the independent variable?
Type of gasoline
which car the gas is put into
how fast the car can drive
how much gas is put into the car
Does changing the scent of a brand of dog food affect how much the dog eats?
Which variable is the part in red?
independent
dependent
What is the hair’s protective layer
Cuticle
Cortex
Medulla
What is Loccard's Exchange Principle?
Perpetrators always leave evidence behind.
Every contact leaves a trace.
All touches leave evidence.
Long, violent confrontations leave evidence.
What are the three layers of hair?
Medulla, keratin, cortex
Cuticle, medulla, keratin
Keratin, cuticle, cortex
Medulla, Cortex, and Cuticle
The region of a hair located outside of the medulla containing granules of pigment. (wood part of pencil)
Cuticle
Medulla
Cortex
The tough outer covering of a hair composed of overlapping scales. (outer part of pencil)
Cortex
Cuticle
Medulla
Match the fingerprint
Loop
Whorl
Helix
Arch
Match the fingerprint.
Loop
Whorl
Helix
Arch
Other than ridge patterns scientists also have to use another pattern to identify and match fingerprints. What are these patterns called?
Medulla
Keratin
Whorls
Minutiae
Which of our POI matched the fingerprint on the handwritten note?
Anna Garcia
Eric Piedmont
Taylor Diaz
Elsie Opal
Which of our POI matched the fingerprint on the flask?
Anna Garcia
Eric Piedmont
Taylor Diaz
Elsie Opal
Identify the type of minutiae circled in the picture.
Ridge ending
Dot
Double Fork
Fork
Name the primary finger print pattern
Loop
Whorl
Arch
Accidental
Label the parts of the hair shaft
cortex
medulla
cuticle
Who's hair was found at the scene?
Eric Piedmont
Dominique Hall
Taylor Diaz
Dr. Elise Opal
Sam Greene
