QR Challenge: Science: Health, matter & materials

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.

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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!

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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.

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Questions / Answers (teacher reference)

Question	Answer
1. Meningitis and tetanus are deseases caused by a.....	Bacteria
2. What does hurt the stomach, the brain and specially the liver?	Alcohol
3. What can we define as a state of physical, mental and social wellbeing?	Health
4. Name two deseases caused by a virus.	flu, measles, AIDS, hepatitis
5. Which are the general properties of matter?	Mass and volume
6. What is density?	It is the relationship between the mass and the volume of a body.
7. How do we call the matter which returns to its original shape after we apply a force to it?	Elastic
8. Place in order of density:oil,sand, water and wood.	sand, water,oil and wood
9. Write two specific properties of the materials.	density, hardness, impermeability, conductivity...
10. When a body sinks in a liquid?	When the body is less denser than the liquid
11. What is called the change of gas to liquid?	condensation
12. What is a homogeneous mixture and name two methods to separate these mixtures?	Mixtures where you cannot distinguish its components.Evaporation and distilation
13. What method is used to separate two liquid of different densities?	decantation
14. Is it a physical or chemical change when the shape or form changes but the mass and volume stay the same	Physical change
15. Which chemical reaction occurs by the action of certain living things and the absence of oxygen?	fermentation

 

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