QR Challenge: Periodic Table of Elements
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
- Download a QR reader (e.g. I-Nigma | NeoReader | Kaywa) onto their mobile devices
- Bring these devices into the lesson.
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. I have 26 protons | Iron
|
2. I am not really an alkali metal, but since I have only 1 electron I behave like them2 | Hydrogen
| 3. I am a gas with 8 protons and 8 neutrons3 | Oxygen
| 4. I am a metal that is liquid at room temperature4 | Mercury
| 5. My atomic number is 47 and I am used to make photographic film5 | Silver
| 6. I have 20 neutrons and am found in your teeth and bones6 | Calcium
| 7. I am a member of the nitrogen family with 16 neutrons7 | Phosphorus
| 8. I am a gas with 19 as my Atomic Mass8 | Fluorine
| 9. I am the 1st element in the 4th period used in making fertilizer9 | Potassium
| 10. 35.453 is my Atomic Mass10 | Chlorine
| 11. 79 is my atomic number11 | Gold
| 12. I am a transition metal with 25 electrons12 | Manganese
| 13. I am a noble gas with 2 electrons13 | Helium
| 14. I am the only element in the halogen family that is a liquid14 | Bromine
| 15. I have 38 protons and am a member of the alkaline earth metals used to make fireworks15 | Strontium |
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Periodic Table of Elements: QR Challenge
https://www.classtools.net/QR/decode.php?text=I_have_26_protons
Question 1 (of 15)
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Periodic Table of Elements: QR Challenge
https://www.classtools.net/QR/decode.php?text=I_am_not_really_an_alkali_metal,_but_since_I_have_only_1_electron_I_behave_like_them2
Question 2 (of 15)
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Periodic Table of Elements: QR Challenge
https://www.classtools.net/QR/decode.php?text=I_am_a_gas_with_8_protons_and_8_neutrons3
Question 3 (of 15)
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Periodic Table of Elements: QR Challenge
https://www.classtools.net/QR/decode.php?text=I_am_a_metal_that_is_liquid_at_room_temperature4
Question 4 (of 15)
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Periodic Table of Elements: QR Challenge
https://www.classtools.net/QR/decode.php?text=My_atomic_number_is_47_and_I_am_used_to_make_photographic_film5
Question 5 (of 15)
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Periodic Table of Elements: QR Challenge
https://www.classtools.net/QR/decode.php?text=I_have_20_neutrons_and_am_found_in_your_teeth_and_bones6
Question 6 (of 15)
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Periodic Table of Elements: QR Challenge
https://www.classtools.net/QR/decode.php?text=I_am_a_member_of_the_nitrogen_family_with_16_neutrons7
Question 7 (of 15)
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Periodic Table of Elements: QR Challenge
https://www.classtools.net/QR/decode.php?text=I_am_a_gas_with_19_as_my_Atomic_Mass8
Question 8 (of 15)
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Periodic Table of Elements: QR Challenge
https://www.classtools.net/QR/decode.php?text=I_am_the_1st_element_in_the_4th_period_used_in_making_fertilizer9
Question 9 (of 15)
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Periodic Table of Elements: QR Challenge
https://www.classtools.net/QR/decode.php?text=35.453_is_my_Atomic_Mass10
Question 10 (of 15)
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Periodic Table of Elements: QR Challenge
https://www.classtools.net/QR/decode.php?text=79_is_my_atomic_number11
Question 11 (of 15)
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Periodic Table of Elements: QR Challenge
https://www.classtools.net/QR/decode.php?text=I_am_a_transition_metal_with_25_electrons12
Question 12 (of 15)
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Periodic Table of Elements: QR Challenge
https://www.classtools.net/QR/decode.php?text=I_am_a_noble_gas_with_2_electrons13
Question 13 (of 15)
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Periodic Table of Elements: QR Challenge
https://www.classtools.net/QR/decode.php?text=I_am_the_only_element_in_the_halogen_family_that_is_a_liquid14
Question 14 (of 15)
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Periodic Table of Elements: QR Challenge
https://www.classtools.net/QR/decode.php?text=I_have_38_protons_and_am_a_member_of_the_alkaline_earth_metals_used_to_make_fireworks15
Question 15 (of 15)