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QR Challenge: Construction Materials

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. What is an ore? Use the glossary of the ‘OCR Chemistry for GCSE’ text book to find a definition. Put the text book back when you have finished. a rock that contains a metal or metal compound in sufficient quantity to make the extraction of the metal economically viable.
2. Put the following rocks in order of hardness (hardest last): granite, limestone, marblelimestone, marble, granite
3. What type of rock is (a) limestone, (b) marble and (c) granite?limestone is sedimentary, marble is metamorphic, granite is igneous.
4. How are metamorphic rocks formed?formed by the action of heat and pressure on sedimentary and igneous rocks over a long period of time.
5. What chemical do both limestone and marble contain?calcium carbonate
6. Write a balanced symbol equation for the thermal decomposition of calcium carbonate.CaCO3 -> CaO + CO2
7. What 3 things are heated together to make glass?limestone, sand and soda
8. What is clay?a mineral formed from weathered and decomposed rock.
9. Name a construction material that is made from clay.bricks
10. How is clay hardened?by heating to very high temperatures.
11. What 2 things are heated to make cement?limestone and clay
12. What happens when cement is mixed with water?a chemical reaction takes places which causes it to harden.
13. How is concrete made?by mixing cement with sand, aggregate (gravel) and water.
14. List 2 advantages of concrete. it is very quick and cheap.
15. What property does steel give to reinforced concrete?flexibility
16. List 2 environmental problems associated with extracting rocks (quarrying).it destroys habitats, causes noise pollution and air pollution.

 


Construction Materials: QR Challenge

https://www.classtools.net/QR/decode.php?text=What-is-an-ore?-Use-the-glossary-of-the-‘OCR-Chemistry-for-GCSE’-text-book-to-find-a-definition.-Put-the-text-book-back-when-you-have-finished.

Question 1 (of 16)

 


Construction Materials: QR Challenge

https://www.classtools.net/QR/decode.php?text=Put-the-following-rocks-in-order-of-hardness-(hardest-last):-granite,-limestone,-marble

Question 2 (of 16)

 


Construction Materials: QR Challenge

https://www.classtools.net/QR/decode.php?text=What-type-of-rock-is-(a)-limestone,-(b)-marble-and-(c)-granite?

Question 3 (of 16)

 


Construction Materials: QR Challenge

https://www.classtools.net/QR/decode.php?text=How-are-metamorphic-rocks-formed?

Question 4 (of 16)

 


Construction Materials: QR Challenge

https://www.classtools.net/QR/decode.php?text=What-chemical-do-both-limestone-and-marble-contain?

Question 5 (of 16)

 


Construction Materials: QR Challenge

https://www.classtools.net/QR/decode.php?text=Write-a-balanced-symbol-equation-for-the-thermal-decomposition-of-calcium-carbonate.

Question 6 (of 16)

 


Construction Materials: QR Challenge

https://www.classtools.net/QR/decode.php?text=What-3-things-are-heated-together-to-make-glass?

Question 7 (of 16)

 


Construction Materials: QR Challenge

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

Question 8 (of 16)

 


Construction Materials: QR Challenge

https://www.classtools.net/QR/decode.php?text=Name-a-construction-material-that-is-made-from-clay.

Question 9 (of 16)

 


Construction Materials: QR Challenge

https://www.classtools.net/QR/decode.php?text=How-is-clay-hardened?

Question 10 (of 16)

 


Construction Materials: QR Challenge

https://www.classtools.net/QR/decode.php?text=What-2-things-are-heated-to-make-cement?

Question 11 (of 16)

 


Construction Materials: QR Challenge

https://www.classtools.net/QR/decode.php?text=What-happens-when-cement-is-mixed-with-water?

Question 12 (of 16)

 


Construction Materials: QR Challenge

https://www.classtools.net/QR/decode.php?text=How-is-concrete-made?

Question 13 (of 16)

 


Construction Materials: QR Challenge

https://www.classtools.net/QR/decode.php?text=List-2-advantages-of-concrete.

Question 14 (of 16)

 


Construction Materials: QR Challenge

https://www.classtools.net/QR/decode.php?text=What-property-does-steel-give-to-reinforced-concrete?

Question 15 (of 16)

 


Construction Materials: QR Challenge

https://www.classtools.net/QR/decode.php?text=List-2-environmental-problems-associated-with-extracting-rocks-(quarrying).

Question 16 (of 16)