QR Challenge: Periodic Table

Created using the ClassTools QR Treasure Hunt Generator

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.

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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!

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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.

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Questions / Answers (teacher reference)

Question	Answer
1. My atomic number is 47 and I am used to make photographic film	Silver
2. I have 20 neutrons and I am found in your teeth and bones	Calcium
3. I am a member of the nitrogen family with 16 neutrons	Phosphorus
4. I am a gas with 19 as my Atomic Mass	Fluorine
5. I am the first element in the fourth period and I am used in making fertilizer	Potassium
6. 35.453 is my Atomic Mass	Chlorine
7. 79 is my atomic number	Gold
8. I am a transition metal with 25 electrons	Manganese
9. I am a noble gas with 2 electrons	Helium
10. I am the only element in the halogen family that is a liquid	Bromine
11. I have 38 protons and am a member of the alkaline earth metals used to make fireworks	Strontium
12. I am a metal that is liquid at room temperature	Mercury
13. I am not really an alkali metal, but since I only have 1 electron I behave like them	Hydrogen
14. I am a gas with 8 protons and 8 neutrons	Oxygen
15. I am a metal that can melt in the warmth of your hand	Gallium
16. I am considered the "father" of the periodic table	Mendeleev
17. We are the only two non-silvery metals on the periodic table	Gold and Copper
18. I am the heaviest naturally occurring element on the periodic table	Uranium
19. I can be found in family 15 and Iam commonly used in rat poison and insecticides	Arsenic
20. I have 118 protons and my atomic mass is 294, how many neutrons do I have	176
21. The human body contains enough of me to make 9,000 pencils	Carbon
22. This is the only letter of the alphabet that does not appear in the periodic table	J

 

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