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PBS Unit 1--1.1 Investigating The Scene
Test Description: Aligned to PLTW 1.1
Instructions: Answer all questions to get your test result.
1) What personal protective equipment should you wear when working with chemicals?
A
Goggles and gloves
B
You don't have to wear any of these.
C
Goggles
D
Goggles, gloves, and apron
2) Which of these is NOT an example of forensic science?
A
Running a genetic test to check for Huntington's disease
B
Testing vitreous humor extracted from an eyeball for drugs
C
Testing blood from a crime scene to determine type
D
Analyzing sperm for a rape case
3) If you are given a blood spatter graph, how will you use it to determine the approximate height?
A
Plug the blood spatter diameter into y and solve for x; estimate by using a ruler at the point given
B
Measure the height of the person and line it up to the point given.
C
Plug the blood spatter diameter into x and solve for y; estimate by using a ruler at the points given
D
You cannot determine it from a blood spatter graph.
4) What evidence would you collect at a crime scene?
A
Fingerprints
B
Hair
C
Blood for DNA
D
All of the above
5) How would you use evidence to identify or exonerate a suspect?
A
If the evidence from the scene matches, then you have identified a suspect.
B
If the evidence from the scene does not match, then you have identified a suspect.
C
If the evidence from the scene matches, then you have NOT identified a suspect.
D
Evidence from a scene cannot identify or exonerate a suspect.
6) Which of the following would be the BEST problem statement or question for an investigation?
A
Based on a survey, which gender is more prone to eating ice cream?
B
Who is more prone to eating ice cream?
C
What makes females more prone to eating ice cream than males?
D
Why are people prone to eating ice cream?
7) Which of the following is the BEST hypothesis for an investigation?
A
I don't know.
B
I think that females are more prone to eating ice cream.
C
I think that males are more prone to eating ice cream.
D
If a particular gender has more likes on the survey for eating ice cream, then that gender is more prone to eating ice cream.
8) What is the independent variable in a study of which gender is more prone to eating ice cream?
A
Ice cream
B
External temperature
C
Internal temperature
D
Gender
9) What is the dependent variable in a study of which gender is more prone to eating ice cream?
A
External temberature
B
Gender
C
Ice cream
D
Internal temperature
10) What would be the BEST, appropriate conclusion if 90% of females eat ice cream weekly and 85% of males eat ice cream every two weeks?
A
The data shows that females are more prone to eating ice cream.
B
The data shows that males are more prone to eating ice cream.
C
As more females (90%) ate ice cream on a weekly (instead of males' every two weeks) basis, females are more prone.
D
None of the above
11) Which of the following would make the best set up to investigate if purple candies make kids more hyper than the other colors?
A
Give one group candies with no color (control) and one group purple candies (experimental)
B
Give one group soda instead of candy (control) and one group purple candies (experimental)
C
None of the above
D
Give one group no candies (control) and one group purple candies (experimental)
*select an answer for all questions
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