QR Challenge: P1 REVISION

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.

---

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. Explain why solar hot water panels have a matt black surface	good absorbers of heat
2. Which type of heat transfer cannot take place in solids	convection and radiation
3. Why does evaporation have a cooling effect on a liquid	decrease in particles with energy
4. Name nine types of energy and give an example of each	check table
5. Calculate how many kWh of electrical energy are used by 0.5kW heater used for 15 minutes	0.125kWh
6. Draw a flow diagram to show how a power station produces electricity	check diagram
7. Label the above diagram with Amplitude, wavelength, peak and trough	check diagram
8. How does red-shift show that the universe is expanding	frequency of light from glaxies lower than they should be and shift towards red end of spectrum showing galaxies are moving away
9. What is the Big Bang Theory	big explosion at start of universe which is still expanding
10. What is Cosmic microwave background radiation (CMBR) and how can it be explained	check answer

 

---