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QR Challenge: Finals Review A

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

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!


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)



1. 11. Which of the following is NOT a mixture?A) table salt B) lemonade C) garden soil D) salad dressingA
2. 12. Which of the following is a heterogeneous mixture?A) paint B) milk C) toothpaste D) graniteD
3. 13. You leave what appears to be a homogeneous mixture undisturbed on a counter. After several hours, you notice that solid particles have settled to the bottom of the container and the liquid is in a layer above them. This observation leads you to believe you have a _____.A) colloid B) alloy C) suspension D) solutionC
4. 14. The smallest piece of matter that cannot be broken down is called _____. A) a compound B) an atom C) a chemical formula D) a pure substanceB
5. 15. In which state of matter do the particles have the most energy?A) liquid B) solid C) plasma D) gasC
6. 18. Aluminum has 3 valence electrons and chlorine has 7 valence electron (-1 charge). Predict the formula for the compound formed when aluminum and chlorine react.A) AlCl3 B) 3AlCl C) AlCl D) Al3ClA
7. 19. Fluorine, a member of Group 17, has an atomic number of 9. How many valence electrons does it typically contain?A) 2 B) 7 C) 17 D) 9B
8. D) oneA


Finals Review A: QR Challenge

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Finals Review A: QR Challenge

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Finals Review A: QR Challenge

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