QR Challenge: Diffusion

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. What are solids liquids and gases made up of?	Particles
2. In a solid the particles are fixed and don't move around. True or False?	True
3. In a gas the particles can't move at all. True or False?	False
4. Diffusion occurs in which two states of matter?	Liquids and gases
5. Why does diffusion not happen in solids?	The particles can't move around.
6. We can smell something across the room because d______ is happening.	Diffusion
7. At the source of the smell is the concentration of particles high or low?	High
8. In diffusion particles move from a high to low c_____.	Concentration
9. In diffusion as the particles spread out they mover to a ____ concentration.	Lower

 

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