Forensic Science

Forensic Science

CSI Web Adventure

CSI Web AdventuresName _____________________________

Go to  http://forensics.rice.edu/and click the section for “Case One: Rookie Training” to find the answers to
complete this worksheet. Answer the Quick Poll question and click “Play game”.

1. Go to the “Forensic Biology” section and choose “Follow Greg” to answer these questions.
A. What is DNA? Answer these questions as you work through this section.
What does the abbreviation DNA represent? _________________________________ _________
Where is the DNA located in a cell? ________________________
Choose the three correct about DNA.
How can forensic scientists use DNA in a crime? ________________________________________________
Which suspect matches the sample from the crime scene? ________________________

B. What is a DNA Profile? Answer these questions asyou work through this section.
Complete: A DNA profile is a _______________ of one person’s genetic information.
What does CODIS represent? ________________________________________________________________
How many markers are used to make a DNA profile? ________

C. How do you process DNA? Answer these questions as you work through this section.
What are the four steps in processing DNA? _____________________________________________________
What is used to collect a DNA sample from Greg? __________________ Where? _________________
What technique is used to copy the DNA markers? _________________________________________________
What does the Genetic Analyzer do? ____________________________________________________________
Follow the steps to process the DNA sample.
Click Begin Analysis and follow the steps. Which DNA profile matched the sample? ________
Complete the Exit Exam.

2. Go to the “Toxicology Lab” section and choose “Learn About The Lab” to answer these questions.
What do forensic toxicologists do? _____________________________________________________________
How much of each is needed for testing? ______ of vitreous humor, _____ of blood, and ______ of urine
What else might be tested? _______________________ or ________________________________
Sort the evidence into the three boxes. What was your time? ______________
What instrument is used to screen for alcohol? ____________________________________________________
What test can tell us if certain drugs are in a sample? ________________________
What does the GC/MS instrument do? ___________________________________________________________
Complete: Every __________________ has its own specific pattern of ________________.
What chemicals were found in the blood sample? __________________and ___________________________
Take the survey by clicking on the computer.

3. Go to the “Firearms & Tool Marks” section and choose “Training Demos” to answer these questions.
A. Parts of a Gun
Where do you find rifling on a gun? _________________________________
What is found in the magazine? ________________________________
B. Part of a Cartridge
What produces the spark to ignite the gunpowder? ______________________
What measurement is used to determine the caliber? ___________________________
C. Bullet Characteristics
What term refers to tiny, microscopic scratches on the surface of a bullet? _____________________________
What is a rifling impression? _________________________________________________________________
Firing Range - Answer the questions by “shooting” the correct answers. What was your score? __________
Evidence Analysis
What is the caliber of the bullet? ____________ What kind of rifling is on the bullet? ___________________
What is its rifling number? ___________ What type of gun was used to shoot this bullet? __________________
Which suspect’s gun was used to shoot the bullet? _________

4. Choose the “Medical Examiner” section to answer these questions.
What is the first thing an examiner does when a person arrives for autopsy? _______________ _____________
Try the autopsy and follow the directions to complete it.
What was the cause of death in this case? ___________________ _____________________
What percentage of deaths is accidental? ________% What percentage is due to homicide? _______%
What was the manner of death for each case?
#6877 __________________ #11989 __________________ #23380 _________________
#4775 __________________ #94575 __________________

5. Choose the “CSI Ethics” section to answer these questions.
Forensic scientists must be _____________________, ____________________, ____________________, and
____________________.
Answer the questions to finish this section.
Ready for a challenge? Return to the home page and try
Case Two: The Burning Star to put your CSI skills to the test.
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