# Print

## 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

• Bring these devices into the lesson.

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.

### Question

1. Question 1 What is the type of lens that can create both a real and a virtual image?_____________Convex Lens
2. Question 2 What happens when white light strikes a diamond?_________________________It breaks into the visible spectrum.
3. Question 3 What is the fastest medium that light can travel through?______Air
4. Question 4 How many miles per second does light travel?__________________186,300 Miles per second.
5. Question 5 What are the four sources of natural light?___________,___________,___________,___________________Sun, Stars, Auroras, and Luminescence.
6. Question 6 What is the energy of light called?________________Raditant Energy
7. Question 7 What is light?______________________A form of energy made of protons.
8. Question 8 What is the outermost part of the eye?__________Cornea
9. Question 9 What is the bending of light rays when it enters a new medium?______________Refraction
10. Question 10 Why does a concave lens only produce a virtual image?_______________________Their light rays never meet.

### Light Core 1 Squad 3: QR Challenge

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