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QR Challenge: cemical reactions

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!


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. Bubbles are a sign of a chemical change.
2. If a precipitant forms, then a 2chemical change has occurred.2
3. If the properties of the substance do not change, then it is a 3physical change.3
4. If paper is burned, this is an example of 4a chemical change.4
5. If an ice cube melted, this is an example of 5a physical change.%

 



cemical reactions: QR Challenge

https://www.classtools.net/QR/decode.php?text=cemical reactions
Q1/5:

Bubbles are a sign of a &choe=UTF-8

Question 1 (of 5)

 



cemical reactions: QR Challenge

https://www.classtools.net/QR/decode.php?text=cemical reactions
Q2/5:

If a precipitant forms, then a 2&choe=UTF-8

Question 2 (of 5)

 



cemical reactions: QR Challenge

https://www.classtools.net/QR/decode.php?text=cemical reactions
Q3/5:

If the properties of the substance do not change, then it is a 3&choe=UTF-8

Question 3 (of 5)

 



cemical reactions: QR Challenge

https://www.classtools.net/QR/decode.php?text=cemical reactions
Q4/5:

If paper is burned, this is an example of 4&choe=UTF-8

Question 4 (of 5)

 



cemical reactions: QR Challenge

https://www.classtools.net/QR/decode.php?text=cemical reactions
Q5/5:

If an ice cube melted, this is an example of 5&choe=UTF-8

Question 5 (of 5)