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QR Challenge: chemical reactions

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. Q1 What is an element?simplest things, made of one type of atom
2. Q2 What is the Periodic Table?where all the elements are listed
3. Q3 What do we call a molecule where two atoms are chemically joined together?diatomic molecule
4. Q4 What are the alkali metals and where can they be found?a family of very reactive metals fouhd in group 1
5. Q5 What are the halogens and where can they be found?a family of very reactive non metals, group 7 in the Periodic Table
6. Q6 What are the Noble Gases and where can they be found?a family of gases which are very unreactive, group 8 in the Period
7. Q7 What are the Transition metals and where can they be found?a group of very useful metals in the middle of the Periodic table
8. Q8 What are symbols?a shorthand way of writing element names
9. Q9 What is a Variable?something that can change during an investigation
10. Q10 Describe what is meant in science by a relationshipthe link between two variables
11. Q11 Describe what is meant by a fair testchanging only one variable during an investigation so the results are reliable
12. Q12 In an investigation what you are trying to find out is called?the aim
13. Q13 What is a conclusion in an investigation?answer your aim
14. Q14 What do we call the substance that dissolves?Solute
15. Q15 what is a solventthe liquid that dissolve the solute (solid)
16. Q16 What is formed when a solute dissolves in a solvent?Solution
17. Q17 What is a saturated solution?maximum solute dissolved at that temperature
18. Q18 What do we call a substance that will dissolve?Soluble
19. Q19 What does insoluble mean?a substance which will not dissolve
20. Q20 The name given to a reaction which gives out energy (usually heat)?Exothermic
21. Q21 What is the definition of endothermic?a reaction which takes in energy (usually heat)
22. Q22 Name a 3 signs that a chemical reaction has taken placeany from colour change, gas given off, solid (precipitate) apperars r dissapears or energy change such as sound, heat or light
23. Q23 Give a definition of enthalpya measure of the change in energy during a reaction
24. Q24 The substances at the start of a reaction are called theReactants
25. Q25 The substances at the end of a reaction are called thproducts
26. Q26 Name three ways to speed up a chemical reactionThree of increase temp, catalyst, smaller particles, higher concen

 


chemical reactions: QR Challenge

https://www.classtools.net/QR/decode.php?text=Q1_What_is_an_element?

Question 1 (of 26)

 


chemical reactions: QR Challenge

https://www.classtools.net/QR/decode.php?text=Q2_What_is_the_Periodic_Table?

Question 2 (of 26)

 


chemical reactions: QR Challenge

https://www.classtools.net/QR/decode.php?text=Q3_What_do_we_call_a_molecule_where_two_atoms_are_chemically_joined_together?

Question 3 (of 26)

 


chemical reactions: QR Challenge

https://www.classtools.net/QR/decode.php?text=Q4_What_are_the_alkali_metals_and_where_can_they_be_found?

Question 4 (of 26)

 


chemical reactions: QR Challenge

https://www.classtools.net/QR/decode.php?text=Q5_What_are_the_halogens_and_where_can_they_be_found?

Question 5 (of 26)

 


chemical reactions: QR Challenge

https://www.classtools.net/QR/decode.php?text=Q6_What_are_the_Noble_Gases_and_where_can_they_be_found?

Question 6 (of 26)

 


chemical reactions: QR Challenge

https://www.classtools.net/QR/decode.php?text=Q7_What_are_the_Transition_metals_and_where_can_they_be_found?

Question 7 (of 26)

 


chemical reactions: QR Challenge

https://www.classtools.net/QR/decode.php?text=Q8_What_are_symbols?

Question 8 (of 26)

 


chemical reactions: QR Challenge

https://www.classtools.net/QR/decode.php?text=Q9_What_is_a_Variable?

Question 9 (of 26)

 


chemical reactions: QR Challenge

https://www.classtools.net/QR/decode.php?text=Q10_Describe_what_is_meant_in_science_by_a_relationship

Question 10 (of 26)

 


chemical reactions: QR Challenge

https://www.classtools.net/QR/decode.php?text=Q11_Describe_what_is_meant_by_a_fair_test

Question 11 (of 26)

 


chemical reactions: QR Challenge

https://www.classtools.net/QR/decode.php?text=Q12_In_an_investigation_what_you_are_trying_to_find_out_is_called?

Question 12 (of 26)

 


chemical reactions: QR Challenge

https://www.classtools.net/QR/decode.php?text=Q13_What_is_a_conclusion_in_an_investigation?

Question 13 (of 26)

 


chemical reactions: QR Challenge

https://www.classtools.net/QR/decode.php?text=Q14_What_do_we_call_the_substance_that_dissolves?

Question 14 (of 26)

 


chemical reactions: QR Challenge

https://www.classtools.net/QR/decode.php?text=Q15_what_is_a_solvent

Question 15 (of 26)

 


chemical reactions: QR Challenge

https://www.classtools.net/QR/decode.php?text=Q16_What_is_formed_when_a_solute_dissolves_in_a_solvent?

Question 16 (of 26)

 


chemical reactions: QR Challenge

https://www.classtools.net/QR/decode.php?text=Q17_What_is_a_saturated_solution?

Question 17 (of 26)

 


chemical reactions: QR Challenge

https://www.classtools.net/QR/decode.php?text=Q18_What_do_we_call_a_substance_that_will_dissolve?

Question 18 (of 26)

 


chemical reactions: QR Challenge

https://www.classtools.net/QR/decode.php?text=Q19_What_does_insoluble_mean?

Question 19 (of 26)

 


chemical reactions: QR Challenge

https://www.classtools.net/QR/decode.php?text=Q20_The_name_given_to_a_reaction_which_gives_out_energy_(usually_heat)?

Question 20 (of 26)

 


chemical reactions: QR Challenge

https://www.classtools.net/QR/decode.php?text=Q21_What_is_the_definition_of_endothermic?

Question 21 (of 26)

 


chemical reactions: QR Challenge

https://www.classtools.net/QR/decode.php?text=Q22_Name_a_3_signs_that_a_chemical_reaction_has_taken_place

Question 22 (of 26)

 


chemical reactions: QR Challenge

https://www.classtools.net/QR/decode.php?text=Q23_Give_a_definition_of_enthalpy

Question 23 (of 26)

 


chemical reactions: QR Challenge

https://www.classtools.net/QR/decode.php?text=Q24_The_substances_at_the_start_of_a_reaction_are_called_the

Question 24 (of 26)

 


chemical reactions: QR Challenge

https://www.classtools.net/QR/decode.php?text=Q25_The_substances_at_the_end_of_a_reaction_are_called_th

Question 25 (of 26)

 


chemical reactions: QR Challenge

https://www.classtools.net/QR/decode.php?text=Q26_Name_three_ways_to_speed_up_a_chemical_reaction

Question 26 (of 26)