QR Challenge: Hazard Symbols

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. HIGHLY FLAMMABLE Catches fire easily. Do not use this chemical near naked flames	1
2. OXIDISING. Can make other substances burn more fiercely. Keep this chemical away from flammable substances.	2
3. CORROSIVE. Attacks and destroys living tissues eg eyes and skin. Wear goggles and gloves when using this chemical.	3
4. MODERATE HAZARD. A harmful chemical that can irritate skin and eyes. Wash hands immediately if you spill this chemical on your skin.	4
5. ACUTELY TOXIC. Can cause death if swallowed or breathed in. Do not put your hands near your mouth or face when using this chemical. Wash your hands thoroughly after use.	5
6. HAZARDOUS TO THE AQAUTIC ENVIRONMENT. Toxic to aquatic life such as fish with long term effects. Do not pour this chemical down the sink.	6
7. EXPLOSIVE. This chemical could explode. It should only be used by a teacher.	7
8. SERIOUS HEALTH HAZARD. Can cause serious damage to health. Wear goggles and wash your hands immediately if you spill this chemical on your skin.	8
9. GAS UNDER PRESSURE. There is a risk of explosion if a gas cylinder is heated. Only to be used by a teacher or technician.	9

 

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