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QR Challenge: Separation Techniques revision

Created using the ClassTools QR Treasure Hunt Generator

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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

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. A mixture is....
2. What is a solvent? Give an example
3. What is a solute? Give an example
4. Give an example of something that could not be filtered
5. What happens when a solid dissolves in terms of particles?
6. Why can you not separate a solution by filtering?
7. What is a saturated solution?
8. How does temperature affect solubility?
9. Describe how to obtain pure salt from rock salt
10. Explain how chromatography works
11. Explain how distillation can be used to separate a solution

 


Separation Techniques revision: QR Challenge

https://www.classtools.net/QR/decode.php?text=A-mixture-is....

Question 1 (of 11)

 


Separation Techniques revision: QR Challenge

https://www.classtools.net/QR/decode.php?text=What-is-a-solvent?-Give-an-example

Question 2 (of 11)

 


Separation Techniques revision: QR Challenge

https://www.classtools.net/QR/decode.php?text=What-is-a-solute?-Give-an-example

Question 3 (of 11)

 


Separation Techniques revision: QR Challenge

https://www.classtools.net/QR/decode.php?text=Give-an-example-of-something-that-could-not-be-filtered

Question 4 (of 11)

 


Separation Techniques revision: QR Challenge

https://www.classtools.net/QR/decode.php?text=What-happens-when-a-solid-dissolves-in-terms-of-particles?

Question 5 (of 11)

 


Separation Techniques revision: QR Challenge

https://www.classtools.net/QR/decode.php?text=Why-can-you-not-separate-a-solution-by-filtering?

Question 6 (of 11)

 


Separation Techniques revision: QR Challenge

https://www.classtools.net/QR/decode.php?text=What-is-a-saturated-solution?

Question 7 (of 11)

 


Separation Techniques revision: QR Challenge

https://www.classtools.net/QR/decode.php?text=How-does-temperature-affect-solubility?

Question 8 (of 11)

 


Separation Techniques revision: QR Challenge

https://www.classtools.net/QR/decode.php?text=Describe-how-to-obtain-pure-salt-from-rock-salt

Question 9 (of 11)

 


Separation Techniques revision: QR Challenge

https://www.classtools.net/QR/decode.php?text=Explain-how-chromatography-works

Question 10 (of 11)

 


Separation Techniques revision: QR Challenge

https://www.classtools.net/QR/decode.php?text=Explain-how-distillation-can-be-used-to-separate-a-solution

Question 11 (of 11)