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
4. Cut them out and place them around your class / school.
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!
4. A detailed case study in how to set up a successful QR Scavenger Hunt using this tool can be found here.
Question | Answer |
| 1. Which end of a water molecule has a slightly positive charge? | hydrogen end | 2. What term refers to a molecule that shares its electrons unequally? | polar | 3. Which unique property of water allows it to regulate temperature? | high specific heat | 4. What term refers to a substance, like water, that can dissolve many different types of materials? | universal solvent | 5. What two processes increase the amount of freshwater entering the ocean and therefore decreases salinity? | precipitation and runoff | 6. What type of intermolecular bond forms between two or more molecules of water? | hydrogen | 7. What happens to the density of water when it freezes into a solid? | the density decreases | 8. What happens to the density of water as its temperature decreases? | the density increases | 9. What is the average salinity of the ocean? | 35 ppt | 10. What type of bond holds the atoms of hydrogen and oxygen together in an individual water molecule? | covalent | 11. What term refers to water's ability to stick to other substances? | adhesion | 12. What process increases the salinity of the ocean? | evaporation | 13. At 32F or 0C, will seawater freeze?Explain your answer. | No, because sea water has a lower freezing point than pure, freshwater | 14. What term refers to the thickness of a fluid or a fluid's tendency to resist flow? | viscosity | 15. What term refers to water's ability to stick to other water molecules? | cohesion | 16. Why does the oxygen end of a water molecule have a slightly negative charge? | because it is larger and pulls the negatively charge electrons toward its end of the water molecule | 17. What term refers to the film-like quality on the surface of a liquid produced by cohesion? | surface tension | 18. What are the three phases (states) of water? | ice(solid), water(liquid), water vapor(gas) | 19. How many hydrogen bonds can an individual molecule form at a single time? | 4 | 20. What two types of compounds will dissolve in water? | ionic and polar covalent |
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