QR Challenge: Fresh and salt water

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. 1. What is the percentage of water on earth, the percentage breakdown of that water, and the percentage of suitable drinking water, in THAT order (you should have 4 percentages!)	74% 97% 3% 0.003%
2. 2. What is hard water	water that has high concentrations of minerals like calcium and magnesium
3. 3.What is it called when hard water leaves mineral deposits behind	scale
4. 4. what are the two most obvious things we look for in our drinking water	taste and color
5. 5. What type of boundary has the plates move away from each other	divergent
6. 6. Waves travel through water. The wave moves great distances, how does the water move	in a circular motion
7. 7.What two ways can we change salt water into safe drinking water	reverse osmosis and distillation
8. 8.What is it called when water breaks down rock or landforms, by chipping away little pieces over time	erosion
9. 9.This is the name given to an area that has all its lakes/streams/rivers drain into the same large body of water	watershed
10. 10.What is it called when pieces of sediment that have been carried by water are"dropped off" at another location	deposition
11. 11.What boundary type is it when the plates come together	converging
12. 12.What natural disaster can occur at a transform boundary	earthquakes
13. 13.List the 2 things that can happen when tectonic plates collide	subduction zones or mountain formation
14. 14. What Earth event can happen at divergent boundary's	volcanoes
15. 15.What is it called when a glacier leaves sediment deposits behind	moraines

 

---