QR Challenge: Soil Layers

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. What is a mixture of minerals, weathered rocks, and other things?	soil
2. What is the stuff called that adds nutrients to the soil?	humus
3. If some soil has a darker color than it probably has more _______ in it.	humus
4. The making of soil starts with ______________.	weathering
5. __________ causes rocks to break down into smaller and smaller pieces.	weathering
6. The top layer of soil is called the ___________.	topsoil
7. Which layer of soil is dark and has the most humus?	topsoil
8. The layer of soil below the topsoil is called the _________.	subsoil
9. The lowest layer of soil is called ___________.	bedrock
10. Bedrock is soil ______.	rock

 

---