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QR Challenge: Hair & Fiber Treasure Hunt

Created using the ClassTools QR Treasure Hunt Generator

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Teacher Notes

A. Prior to the lesson:

1. Arrange students into groups. Each group needs at least ONE person who has a mobile device.

2. If their phone camera doesn't automatically detect and decode QR codes, ask students to

3. Print out the QR codes.

4. Cut them out and place them around your class / school.

B. The lesson:

1. Give each group a clipboard and a piece of paper so they can write down the decoded questions and their answers to them.

2. Explain to the students that the codes are hidden around the school. Each team will get ONE point for each question they correctly decode and copy down onto their sheet, and a further TWO points if they can then provide the correct answer and write this down underneath the question.

3. Away they go! The winner is the first team to return with the most correct answers in the time available. This could be within a lesson, or during a lunchbreak, or even over several days!

C. TIPS / OTHER IDEAS

4. A detailed case study in how to set up a successful QR Scavenger Hunt using this tool can be found here.

Questions / Answers (teacher reference)

Question

Answer

1. What are the 3 main structures in hair?cortex, medulla, cuticle.
2. The presence of this makes it possible to do DNA analysis on hair.follicular tag.
3. A band formed on hair from decomposition is called?Postmortem root band AKA "Dead Man's Root"
4. What is the scale type found in animals that are crown shaped?Coronal
5. What is the scale type found in humans?Imbricate
6. What is the scale type found in animals that are petal shaped?Spinous
7. In human hair, the medulla takes up no more than ______ of the hair shaft.1/3
8. Explain the difference in pigmentation between human and animal hair.Human constant pigment, animals can vary greatly.
9. What is a tool used for analysis that allows for side by side microscopic analysis?comparison microscope.
10. What are the types of information that can NOT be learned from hair?age, gender
11. What are the types of information that can be learned from hair?race, somatic origin, human or animal.
12. Other than the microscopic characteristics of hair, what else provides significance to hair evidence? frequency of contact, & context
13. Give an example of a natural, plant based fiber.cotton, hemp, flax, jute, coir.
14. Give an example of a natural, animal based fiber.wool, mohair, cashmere, silk.
15. Give an example of a natural, mineral based fiber.asbestos
16. Give an example of a synthetic fiber.polyester, nylon, acrylic, rayon, acetate.
17. What is a heat & fire resistant synthetic fiber?Aramid
18. What type of analysis can be used to determine a fiber's chemical composition using light at different wavelengths?Fourier Transform Infrared Spectroscopy (FTIR)
19. Fibers are compared microscopically by color, diameter, and _________.Production characteristics.
20. __________% of fiber evidence is lost within 24 hours.95

 


Hair & Fiber Treasure Hunt: QR Challenge

https://www.classtools.net/QR/decode.php?text=What_are_the_3_main_structures_in_hair?

Question 1 (of 20)

 


Hair & Fiber Treasure Hunt: QR Challenge

https://www.classtools.net/QR/decode.php?text=The_presence_of_this_makes_it_possible_to_do_DNA_analysis_on_hair.

Question 2 (of 20)

 


Hair & Fiber Treasure Hunt: QR Challenge

https://www.classtools.net/QR/decode.php?text=A_band_formed_on_hair_from_decomposition_is_called?

Question 3 (of 20)

 


Hair & Fiber Treasure Hunt: QR Challenge

https://www.classtools.net/QR/decode.php?text=What_is_the_scale_type_found_in_animals_that_are_crown_shaped?

Question 4 (of 20)

 


Hair & Fiber Treasure Hunt: QR Challenge

https://www.classtools.net/QR/decode.php?text=What_is_the_scale_type_found_in_humans?

Question 5 (of 20)

 


Hair & Fiber Treasure Hunt: QR Challenge

https://www.classtools.net/QR/decode.php?text=What_is_the_scale_type_found_in_animals_that_are_petal_shaped?

Question 6 (of 20)

 


Hair & Fiber Treasure Hunt: QR Challenge

https://www.classtools.net/QR/decode.php?text=In_human_hair,_the_medulla_takes_up_no_more_than________of_the_hair_shaft.

Question 7 (of 20)

 


Hair & Fiber Treasure Hunt: QR Challenge

https://www.classtools.net/QR/decode.php?text=Explain_the_difference_in_pigmentation_between_human_and_animal_hair.

Question 8 (of 20)

 


Hair & Fiber Treasure Hunt: QR Challenge

https://www.classtools.net/QR/decode.php?text=What_is_a_tool_used_for_analysis_that_allows_for_side_by_side_microscopic_analysis?

Question 9 (of 20)

 


Hair & Fiber Treasure Hunt: QR Challenge

https://www.classtools.net/QR/decode.php?text=What_are_the_types_of_information_that_can_NOT_be_learned_from_hair?

Question 10 (of 20)

 


Hair & Fiber Treasure Hunt: QR Challenge

https://www.classtools.net/QR/decode.php?text=What_are_the_types_of_information_that_can_be_learned_from_hair?

Question 11 (of 20)

 


Hair & Fiber Treasure Hunt: QR Challenge

https://www.classtools.net/QR/decode.php?text=Other_than_the_microscopic_characteristics_of_hair,_what_else_provides_significance_to_hair_evidence?

Question 12 (of 20)

 


Hair & Fiber Treasure Hunt: QR Challenge

https://www.classtools.net/QR/decode.php?text=Give_an_example_of_a_natural,_plant_based_fiber.

Question 13 (of 20)

 


Hair & Fiber Treasure Hunt: QR Challenge

https://www.classtools.net/QR/decode.php?text=Give_an_example_of_a_natural,_animal_based_fiber.

Question 14 (of 20)

 


Hair & Fiber Treasure Hunt: QR Challenge

https://www.classtools.net/QR/decode.php?text=Give_an_example_of_a_natural,_mineral_based_fiber.

Question 15 (of 20)

 


Hair & Fiber Treasure Hunt: QR Challenge

https://www.classtools.net/QR/decode.php?text=Give_an_example_of_a_synthetic_fiber.

Question 16 (of 20)

 


Hair & Fiber Treasure Hunt: QR Challenge

https://www.classtools.net/QR/decode.php?text=What_is_a_heat_&_fire_resistant_synthetic_fiber?

Question 17 (of 20)

 


Hair & Fiber Treasure Hunt: QR Challenge

https://www.classtools.net/QR/decode.php?text=What_type_of_analysis_can_be_used_to_determine_a_fiber's_chemical_composition_using_light_at_different_wavelengths?

Question 18 (of 20)

 


Hair & Fiber Treasure Hunt: QR Challenge

https://www.classtools.net/QR/decode.php?text=Fibers_are_compared_microscopically_by_color,_diameter,_and__________.

Question 19 (of 20)

 


Hair & Fiber Treasure Hunt: QR Challenge

https://www.classtools.net/QR/decode.php?text=__________%_of_fiber_evidence_is_lost_within_24_hours.

Question 20 (of 20)