Introduction
This is a murder mystery just waiting to be solved. As the chief investigator on the case, you are charged with determinng the blood type of the victim and the suspects. You will use the information you learn to deduce who murdered the victim.
Task
You will be a chief investigator and analyzing blood evidence from a crime scene and determine the blood types of the suspects and the victim, and hopefully, solve the crime!
Process
The Crime
Early this morning, Mrs. Stoup and her fluffy white poode, Sally, were walking down a street. Sally was doing her normal stop, sniffle, walk, and pee. Suddenly, Sally started digging and Mrs. Stoup thought that was a bit unusual for her prissy pup. Mrs. Stoup investigated and found clothes covered in a dark substance which looked like blood. She immediately called 911 on her cell phone. A short time later, Detective Rodriguez arrived to investigate. It turns out that a young man's body was found that morning in a near by creek. The evidence so far narrows it down to 3 possible suspects, and hopefully the blood evidence will indicate which suspect committed the crime. Detective Snow calls in the blood experts, YOU to finish the analysis.
The following links lead you to sites where you can read about and practice some of the skills you need will need to analyze the evidence and solve the case. Go to each site, read the information or perform the task, and then answer the associated questions on your worksheet. Have fun!!
#1: Go to this Website:
https://www.wisc-online.com/learn/natural-science/life-science/ap14804/blood-groups#
At this website, you will learn about different types of blood groups. Fill out the questions about this page on the worksheet packet handed out by your teacher.
#2: Go to this Website:
http://www.nobelprize.org/educational/medicine/landsteiner/readmore.html
At this website, you will learn more about different types of blood, including Rh factors, blood transfusions, and blood typing. Complete page 2 of your worksheet packet as you work through this website.
#3: Go to this Website:
http://www.nobelprize.org/educational/medicine/landsteiner/landsteiner.html
At this website, you will learn apply what you learned about blood typing and transfusions to 3 patient scenarios to see if you are ready to solve our crime. Complete page 3 of the worksheet packet.
The final step:
It is now time to go to the final step, so move on and solve the mystery!
You have brought the evidence back to the lab from the crime scence and have started your analysis. You have found that there are 2 different types of blood found at the crime scene. You may have just found a link to the killer! You have found blood type A- and blood type O+. You decide to go and determine the blood type of the victim and the three suspects. The following is a summary of the results from your tests.
|
Individual |
anti - A antibody |
anti - B antibody |
anti - Rh antibody |
|---|---|---|---|
|
Victim |
clump |
no clump |
no clump |
|
Suspect 1 |
no clump |
no clump |
clump |
|
Suspect 2 |
no clump |
clump |
clump |
|
Suspect 3 |
clump |
clump |
no clump |
So, do you have a match? Yes? Great! Your final part of this assignment is to write a paragraph explaining the blood types of each of the suspects and the victim, and explain how you know which suspect is the likely killer.
Congrats! Hopefully we have found the murderer.
Evaluation
You will be evaluated on your performance on the worksheet and on your final evaluation of the suspects/victims blood and explanation. You may be awarded up to 25 points for the assignment
Worksheet Rubric (15 points possible):
| Page of Worksheet | Points 5-3 | Points 2-0 |
| Page 1/Website 1 | All questions are answered and answered thoroughly. Answers are in full sentences when appropriate. Student may have one or two answers that are not correct | Some questions are answered and/or not answered thoroughy. Questions are not answered in full sentences. Student has more than 2 incorrect answers. |
| Page 2/Website 2 | All questions are answered and answered thoroughly. Answers are in full sentences when appropriate. Student may have one or two answers that are not correct | Some questions are answered and/or not answered thoroughy. Questions are not answered in full sentences. Student has more than 2 incorrect answers. |
| Page 3/Website 3 | All questions are answered and answered thoroughly. Answers are in full sentences when appropriate. Student may have one or two answers that are not correct | Some questions are answered and/or not answered thoroughy. Questions are not answered in full sentences. Student has more than 2 incorrect answers. |
Paragraph Points (10 points possible):
1. Identified blood types (4 pts): one point for each blood type that is correctly identified
2. Explanation of blood types (4 pts): one point for each explanation of blood type
3. Presentation (2 pts): one point for paragraph structure (full sentences, paragraph flow); one point for spelling and grammar
Conclusion
So, now you have learned about blood types, Rh factors, blood transfusions, and blood typing. You have successfully applied your knowledge to real life situations. For your homework, you will complete the self-quiz provided at this website: http://anthro.palomar.edu/practice/bldquiz2.htm
Credits
I would like to credit: Jennifer Landry at North Cross School for inspiration for this webquest and for providing the final test of the crime scene.
I would like to credit Palomar College's Anthropology page with the link for the self quiz.
Finally, I would like to credit Killeen ISD's science department with the worksheet used in this exercise.
Teacher Page
This is the website link to find the worksheet used in this exercise: https://www.killeenisd.org/teacherDocs/c7/e28748/documents/ANewMenuItem-79888.pdf