Glaister Equation Practice
Authored by Michael Bishop
Science
9th - 10th Grade
NGSS covered
Used 99+ times
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About
This quiz focuses on forensic science, specifically the application of the Glaister equation for estimating time of death using algor mortis (body temperature changes after death). Designed for high school students in grades 9-10, this assessment requires students to understand the physiological process of post-mortem body cooling and apply mathematical formulas to solve real-world forensic problems. Students must demonstrate proficiency in unit conversions between Fahrenheit and Celsius, mathematical problem-solving with scientific equations, and critical thinking about the limitations of forensic evidence. The core concepts include understanding normal human body temperature, the rate at which bodies cool after death, and the factors that can affect temperature loss calculations. Students need strong algebraic skills to manipulate the Glaister equation and must recognize when insufficient information makes time of death determination impossible. Created by Michael Bishop, a Science teacher in US who teaches grade 9-10. This quiz serves as an excellent tool for formative assessment in forensic science units, allowing teachers to evaluate student understanding of mathematical applications in criminal investigation. The problems work effectively as homework assignments to reinforce classroom learning about death investigation techniques, or as review material before summative assessments on forensic pathology. Teachers can use these questions as warm-up activities to activate prior knowledge about body systems and temperature regulation, or as practice problems during laboratory sessions involving forensic case studies. The quiz aligns with NGSS standards HS-LS1-3 (planning and carrying out investigations to provide evidence that feedback mechanisms maintain homeostasis) and supports Common Core mathematics standards including HSA-CED.A.3 (representing constraints by equations and interpreting solutions in context of the situation).
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7 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Is the time of death more than 12 hours, less than 12 hours, or cannot be determined? Body has lost 7.9 degrees F.
Less
More
Cannot be determined
Tags
NGSS.HS-PS3-4
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Is the time of death more than 12 hours, less than 12 hours, or cannot be determined? Body has lost 4.4 degrees C.
Less
More
Cannot be determined
Tags
NGSS.HS-PS3-4
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Is the time of death more than 12 hours, less than 12 hours, or cannot be determined? Body has lost 25.7 degrees F.
Less
More
Cannot be determined
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Determine the approximate time of death using evidence from algor mortis. Approximately how long has the vicitim been dead if his body temperature was 91.6 degrees Fahrenheit?
4.5 hours
5.9 hours
6.25 hours
3 hours
Tags
NGSS.HS-PS3-4
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Approximately how long has the vicitim been dead if his body temperature was 85.2 degrees Fahrenheit?
2 hours
2 hours and 14 minutes
20 hours
8.8 hours
Tags
NGSS.HS-PS3-4
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the approximate time of death if the body temperature was 60.8 degrees Fahrenheit?
48.63 hours
45 hours 24 mins
25.06 hours
7 hours
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the temperature loss for someone who has been dead for 15 hours?
24.39 degrees celsius
9.36 degrees celsius
18.05 degrees celsius
38 degrees celsius
Tags
NGSS.HS-PS3-4
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