Identifying Evidence
Which type of evidence could help determine whether a fiber came from an animal, a plant, or a synthetic material?
A. Fiber Analysis
B. Blood typing
C. DNA extraction
D. Soil testing
A. Fiber Analysis
What are the 3 biggest requirements for entering a lab?
A. wear safety glasses, eat breakfast, and have a good attitude
B. Wear closed toed shoes, make detailed observations, and don't bring in any food
C. Wear long pants, wear safety glasses, and have a good attitude
D. Wear closed toed shoes, keep your safety glasses on, and wear long pants
D
What is the main goal of forensic science?
A. To solve math problems
B. To use scientific evidence to investigate crimes
C. To predict the weather
D. To create new medicines
B. to use scientific evidence to investigate crimes
What chemical makes hidden blood stains glow blue?
Luminol
Fingerprints are useful in forensic investigations because they are:
A. The same for everyone
B. Always easy to see without special tools
C. Unique to every person
D. Only found at a crime scene
C. Unique to every person
What happens to food items once they enter the lab?
HINT: this is the purpose of the shelf outside each lab
They are no longer food safe, and shouldn't be eaten
Which statement best describes a scientific claim?
A. A random guess without evidence
B. A conclusion that is supported by evidence and reasoning
C. A list of observations only
D. A personal opinion
B. A conclusion that is supported by evidence and reasoning
How many different types of fingerprints are there?
8 types
Why is it important to carefully observe and record evidence during an investigation?
A. To make the report longer
B. To support accurate conclusions with evidence
C. To impress other investigators
D. To avoid using scientific methods
B. To support accurate conclusions with evidence
What procedure has investigators use blood samples and anti A, B, and Rh serum?
Blood typing
Name the three steps to building a succinct argument.
Claim, evidence, reasoning
What year was DNA evidence first used in a case?
1986
Which type of evidence can be examined under a microscope to help identify its source?
A. Hair
B. Fingerprints
C. Footprints
D. Tire tracks
A. Hair
Name 5 of the 6 different tests we did to help identify the criminal
Powder, liquid, metal, plastic, fiber, written evidence
Why is it helpful to use more than one type of evidence when solving a crime?
A. One piece of evidence is never useful
B. Multiple types of evidence provide support for conclusions
C. It makes the investigation more expensive
D. It guarantees the suspect with confess
B. Multiple types of evidence provide support for conclusions
Which body part is most commonly used to identify victims, because it doesn't burn in a fire
Teeth
Which property can help identify different types of plastic evidence?
A. Color only
B. Density (sink or float test)
C. Temperature
D. Size
B. Density
What is the purpose of paper chromatography?
A. To measure the weight of an object
B. To separate mixtures into their different components
C. To separate collect fingerprints
D. To identify blood types
B. To separate mixtures into their different components
Reasoning connects ____ to _____ and ties your argument together
Evidence to claim
What type of evidence is more unique? Finger prints or DNA?
Finger prints!!