QR Challenge: Periodic Table Treasure Hunt

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. CLUE #1: Atomic mass of 6.941, 1 valence electron, alkali metal, symbol is Li.
2. CLUE #2: Atomic mass of 26.982, 3 valence electrons, metal, symbol is Al.
3. CLUE #3 Atomic mass of 20.1797, 8 valence electrons, noble gas, symbol is Ne.
4. CLUE #4: Atomic mass of 15.999, 6 valence electrons, non-metal, symbol O.
5. CLUE #5: Atomic mass of 74.992, 5 valence electrons, non-metal, symbol is As.
6. CLUE #6: Atomic mass of 40.078, 2 valence electrons, earth metal, symbol Ca.
7. CLUE #7: Atomic mass of 35.453, 7 valence electrons, halogen, symbol is Cl.
8. CLUE #8: Atomic mass of 118.711, 4 valence electrons, metal, symbol is Sn.
9. CLUE #9: Atomic mass of 51.996, 24 valence electrons, trans.metal, symbol Cr.
10. CLUE #10: Atomic mass of 200.59, 80 valence electrons, trans. metal, symbol Hg.
11. CLUE #11: Atomic mass of 195.08, 78 valence electrons, trans. metal, symbol Pt
12. CLUE #12: Atomic mass of 44.956, 21 valence electrons, trans. metal, symbol Sc

 

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