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QR Challenge: Changing State

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 are the 3 states of matter?Solid, Liquid and Gas
2. Liquid > solid what is this change called?Solidify
3. What makes an ice cube melt?Temperature getting colder
4. Liquid > gas what is this change called?Evaporation
5. Scientifically what is meant by melting?The change from a solid to a liquid
6. If a beaker of water is left for a few days, what happens?The water evaporates
7. What happens when a gas is cooled?It begins to condense
8. What are the tiny parts of a material called?Particles or Molecules
9. What is the state of a material if it is described as hard?Solid
10. What is the freezing point of water?0 degrees Celsius

 


Changing State: QR Challenge

https://www.classtools.net/QR/decode.php?text=Changing State
Q1/10:

What are the 3 states of matter?&choe=UTF-8

Question 1 (of 10)

 


Changing State: QR Challenge

https://www.classtools.net/QR/decode.php?text=Changing State
Q2/10:

Liquid > solid what is this change called?&choe=UTF-8

Question 2 (of 10)

 


Changing State: QR Challenge

https://www.classtools.net/QR/decode.php?text=Changing State
Q3/10:

What makes an ice cube melt?&choe=UTF-8

Question 3 (of 10)

 


Changing State: QR Challenge

https://www.classtools.net/QR/decode.php?text=Changing State
Q4/10:

Liquid > gas what is this change called?&choe=UTF-8

Question 4 (of 10)

 


Changing State: QR Challenge

https://www.classtools.net/QR/decode.php?text=Changing State
Q5/10:

Scientifically what is meant by melting?&choe=UTF-8

Question 5 (of 10)

 


Changing State: QR Challenge

https://www.classtools.net/QR/decode.php?text=Changing State
Q6/10:

If a beaker of water is left for a few days, what happens?&choe=UTF-8

Question 6 (of 10)

 


Changing State: QR Challenge

https://www.classtools.net/QR/decode.php?text=Changing State
Q7/10:

What happens when a gas is cooled?&choe=UTF-8

Question 7 (of 10)

 


Changing State: QR Challenge

https://www.classtools.net/QR/decode.php?text=Changing State
Q8/10:

What are the tiny parts of a material called?&choe=UTF-8

Question 8 (of 10)

 


Changing State: QR Challenge

https://www.classtools.net/QR/decode.php?text=Changing State
Q9/10:

What is the state of a material if it is described as hard?&choe=UTF-8

Question 9 (of 10)

 


Changing State: QR Challenge

https://www.classtools.net/QR/decode.php?text=Changing State
Q10/10:

What is the freezing point of water?&choe=UTF-8

Question 10 (of 10)