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QR Challenge: Mendeleev's Castle

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. Room 1. Good Job! Write down Hydrogen (H) on door 18 on your paper. Now to the next room. You and your friends have suddenly materialized in a room made entirely of a shiny metallic solid. A shimmering holograph appears before you. The scientist says, “This room has been constructed of a strong, lightweight, corrosion-resistant metal and is the most abundant metal in Earth’s crust.”Room1-Clue1
2. 2nd clue – This atom contains three valence electrons.Room1-Clue2
3. 3rd clue – This atom contains 13 protons.Room1-Clue
4. Room 2. Good Job! Write down aluminum (Al) on door 1 on your paper. Now to the next room.. The next room you find yourselves in is made of a non-metal, clear life-giving gas.Room2-Clue1
5. 2nd clue - Suddenly Mendeleev appears again, saying, “This element is a non metal, diatomic gas that comprises about 20% of normal air.Room2-Clue2
6. 3rd clue – This element combines with hydrogen to make water.Room2-Clue3
7. Room 3. Good Job! Write down oxygen (O) on door 2 on your paper. Now to the next room. You and your friends are transported to a room made from a green-yellow gas that immediately begins to burn your nostrils and your throat. You reach into your packs for gas masks to protect yourselves from these noxious fumes. Mendeleev appears and says “This diatomic gas is a halogen.”Room3-Clue1
8. 2nd clue - The holograph of Mendeleev appears again through the shifting gas. “This element has 3 electron orbits or shells.”room3-Clue2
9. 3rd clue – This element has 17 protons.Room3-Clue3
10. Room 4. Good Job! Write down Chlorine(Cl) on door 3 on your paper. In the next room you find yourselves surrounded by bright yellow crystals of a non-metal. The old chemist appears and says, “This element used to be known by the name brimstone.”Room4-Clue1
11. 2nd clue - It is then that you begin to notice the smell of rotten eggs and it makes you cover your nose. The room is tinted yellow by light reflecting off the crystals.room4-clue2
12. 3rd clue – This element has 6 valence electrons.Room4-clue3
13. 4th clue – This element has 16 electrons.room4-clue4
14. Room 5. Good Job! Write down Sulfur (S) on door 4 on your paper. Now to the next room. You are in a room made of a clear gas, located in one of the towers of the Castle Mendeleev. The holograph tells you, “The atoms of this element are also diatomic.”Room5-Clue1
15. Clue 2 – This gas is considered noble because it has a full outer shell. Room5-Clue2
16. Clue 3 - Trying to talk to your friends, your voice sounds high-pitched and squeaky, like Mickey Mouse.Room5-clue3
17. Room 6. Good Job! Write down Helium (He) on door 5 on your paper. The first clue for room 6: The sixth room you are transported to is on the first floor of the castle. It is made of a silver-gray metallic solid. Taking a knife out of your backpack, you are able to cut a piece of this alkali metal off with the blade because the substance is very soft.Room6-Clue1
18. Clue 2 - Filling a small glass beaker with water from your canteen, you drop the substance in to observe its reaction with water. It floats on the water for a few seconds, then there is a small explosion as sparks are sent off.room6-Clue2
19. Clue 3 – This element is found in table salt, chemical name: sodium chloride.Room6-Clue3
20. Room 7. Good Job! Write down sodium (Na) on door 6 on your paper. Now to the next room. The first clue for Room 7: Next you are transported to a room with bright, white, waxy walls. When you turn off the lights, the entire room glows in the darkRoom7-Clue1
21. Clue 2- This metal reacts by gaining 3 electrons.room7-clue2
22. Clue 3 - The holograph tells you, “This element occurs in teeth and bones as calcium phosphate.”Room7-clue3
23. Clue 4 - This element has 15 protons.Room7-Clue4
24. Room 8. Good Job! Write down phosphorus (P) on door 7 on your paper. Now to the next room. Your first clue for room 8: You are now in a room made of a shiny, silver element is next to the secret staircase of the castle. The image of Mendeleev reappears to say, “When this element reacts it gains or shares 4 electrons.”room8-clue1
25. Clue 2 - “This element appears here in its pure form. If combined with traces of other elements, it becomes a semiconductor that is use in circuits of electronic devices such as calculators.”room 8-Clue2
26. Clue 3 – “It and oxygen are the two elements that make up sand but not diamonds.”Room8-Clue3
27. Clue 4 - This element has 14 electrons.room8-clue4
28. Room 9. Good Job! Write down silicon (Si) on door 8 on your paper. Now to the next room. Next clue for Room 9: The ninth room is composed of a gas that has no color, taste, or odor. A transparent image of the chemist tells you, “This element is diatomic.”Room9-Clue1
29. Clue 2- “This element makes up 80% of normal air.”Room9-clue2
30. Clue 3 - “An atom of this element has 2 electrons in its first shell and 5 electrons in its second shell.”Room9-Clue3
31. Clue 4 - This element is what you get when oxygen loses a proton.Room9-Clue4
32. Room10- Good Job! Write down Nitrogen (N) on door 9 on your paper. Next clue for Room 10: The next room you are transported to is made of a soft, white metal. It can be shiny but corrodes and turns white in the presence of air.Room10-Clue1
33. Clue 2- This Room is on the second floor of my castle.Room10-Clue2
34. Clue 3- This element has two electron orbitals (shells) and one valence electron.Room10-clue3
35. Clue 4- This element is the least reactive in its family.Room10-Clue4
36. Room 11. Good Job! Write down lithium (Li) on door 10 on your paper. Next clue for Room 11: Next, you are transported to a room in the corner of the Castle Mendeleev. The room is made of a thick, unreactive gas.Room11-Clue1
37. Clue 2 - Mendeleev flickers into view to tell you, “This element is used to fill light bulbs.”Room11-Clue2
38. Clue 3 - The atoms of this element have 8 electrons in their third and final shell.Room11-Clue3
39. Clue 4- This element has 18 electrons.Room11-Clue4
40. Room 12. Good Job! Write down Argon(Ar) on door 11 on your paper. Next clue for Room 12: After escaping from the last room you materialize in a room made of a solid substance. Mendeleev’s image appears in front of you and says, “This element is the basic unit for all living things.”Room12-Clue1
41. Clue 2 - “Without it, jewelers would go broke, gas stations would go out of business, and every breath you exhale would be incomplete.”Room12-Clue2
42. Clue 3- "This element is used in radioactive dating."Room12-Clue3
43. Clue 4 - “The element has 6 neutrons and an atomic mass of 12.”Room12-Clue4
44. Room 13. Good Job! Write down Carbon (C) on door 12 on your paper. Next clue for Room 13: The next room you enter is filled with a gas. The gas is colorless and nonreactice.Room13-Clue1
45. Clue 2 - Mendeleev appears, telling you, “When electricity is run through it, the gas emits a brilliant orange-red light when contained in a discharge tube.”Room13-Clue2
46. Clue 3 – “Las Vegas wouldn’t be the same without this element.”Room13-Clue3
47. Clue 4 – “This element has 10 electrons and 10 neutrons.”Room13-clue4
48. Room 14 Good Job! Write down Neon (Ne) on door 13 on your paper. Next clue for Room 14: This room is made of a light gray metal. Again, the image of Mendeleev speaks, “This element is so strong, hard, and elastic that it is used in alloys to reinforce other metals. Its melting point is nearly 1300oC.”Room14-Clue1
49. Clue 2 – It is part of the Alkaline Earth Metals Family.Room14-Clue2
50. Clue 3 – It reacts by losing two electrons.Room14-Clue3
51. Clue 4 - It has 4 protons.Room14-Clue4
52. Room 15. Good Job! Write down Beryllium (Be) on door 14 on your paper. Next clue for Room 15: The next room is made of a hard, black, shiny material and then suddenly it changes to a brown powder. The old chemist appears and says “This does not conduct heat or electricity well. It can withstand really high heats and is used in making scientific glassware."Room15-Clue1
53. Clue 2 - The holograph of the chemist tells you the atoms of this element have 2 electron shells.Room15-Clue2
54. Clue 3 – This element is a metalloid on the second floor of the castle.Room15-Clue3
55. Clue 4 - This element has a rounded atomic mass of 11 and 6 neutrons.Room15-Clue4
56. Room 16. Good Job! Write down Boron (B) on door 15 on your paper. Next clue for Room 16: The sixteenth room you enter is made of a greenish-yellow gas. The image tells you, “Be very careful, this element is the most reactive of the nonmetals.”Room16-Clue1
57. Clue 2 – It also reacts with hydrocarbons to form Teflon, the nonstick coating in frying pans.Room16-Clue2
58. Clue 3 - “The atoms of this halogen combine with sodium to help reduce tooth decay.”Room16-Clue3
59. Clue 4 - This element's atoms have 9 protons.Room16-Clue4
60. Room 17. Good Job! Write down Fluorine (F) on door 16 on your paper. Next clue for Room 17: Next you have been transported to a room on the first floor of the Castle Mendeleev that is made of a white solid. This solid can be shined and is malleable. It is fairly reactive but it does not have to be kept in oil to keep it from reacting.Room17-Clue 1
61. Clue 2 - The holograph of Dmitri Mendeleev reappears, shifting before you like a milky ghost, speaking to you once more. “This element burns brilliantly in air. The atoms of this element form positive ions by giving up two electrons.”Room17-Clue2
62. Clue 3 – “This element is widely used in aerospace industries in alloys with other metals. It makes a very strong lightweight ladder with aluminum.Room17-Clue 3
63. Clue 4- This element has 12 electrons.Room17-Clue4
64. Room 18. Good Job! Write down Magnesium (Mg) on door 17 on your paper.Next clue for Room 18: You finally find yourself in the second tower of the Castle Mendeleev. The room is made of a transparent gas.Room18-Clue1
65. Clue2 - It is the most abundant element in the universe.Room18-Clue2
66. Clue 3 - This element is the simplest and lightest of all the elements.Room18-Clue3
67. Clue 4 - This element usually has no neutrons.Room18-Clue4

 


Mendeleev's Castle: QR Challenge

https://www.classtools.net/QR/decode.php?text=Room_1.__Good_Job!__Write_down_Hydrogen_(H)_on_door_18_on_your_paper.__Now_to_the_next_room._You_and_your_friends_have_suddenly_materialized_in_a_room_made_entirely_of_a_shiny_metallic_solid.__A_shimmering_holograph_appears_before_you.___The_scientist_says,_“This_room_has_been_constructed_of_a_strong,_lightweight,_corrosion-resistant_metal_and_is_the_most_abundant_metal_in_Earth’s_crust.”

Question 1 (of 67)

 


Mendeleev's Castle: QR Challenge

https://www.classtools.net/QR/decode.php?text=2nd_clue_–_This_atom_contains_three_valence_electrons.

Question 2 (of 67)

 


Mendeleev's Castle: QR Challenge

https://www.classtools.net/QR/decode.php?text=3rd_clue_–_This_atom_contains_13_protons.

Question 3 (of 67)

 


Mendeleev's Castle: QR Challenge

https://www.classtools.net/QR/decode.php?text=Room_2.__Good_Job!__Write_down_aluminum_(Al)_on_door_1_on_your_paper.__Now_to_the_next_room.._The_next_room_you_find_yourselves_in_is_made_of_a_non-metal,_clear_life-giving_gas.

Question 4 (of 67)

 


Mendeleev's Castle: QR Challenge

https://www.classtools.net/QR/decode.php?text=2nd_clue_-_Suddenly_Mendeleev_appears_again,_saying,_“This_element_is_a_non_metal,_diatomic_gas_that_comprises_about_20%_of_normal_air.

Question 5 (of 67)

 


Mendeleev's Castle: QR Challenge

https://www.classtools.net/QR/decode.php?text=3rd_clue_–_This_element_combines_with_hydrogen_to_make_water.

Question 6 (of 67)

 


Mendeleev's Castle: QR Challenge

https://www.classtools.net/QR/decode.php?text=Room_3.__Good_Job!__Write_down_oxygen_(O)_on_door_2_on_your_paper.__Now_to_the_next_room._You_and_your_friends_are_transported_to_a_room_made_from_a_green-yellow_gas_that_immediately_begins_to_burn_your_nostrils_and_your_throat.__You_reach_into_your_packs_for_gas_masks_to_protect_yourselves_from_these_noxious_fumes.__Mendeleev_appears_and_says_“This_diatomic_gas_is_a_halogen.”

Question 7 (of 67)

 


Mendeleev's Castle: QR Challenge

https://www.classtools.net/QR/decode.php?text=2nd_clue_-_The_holograph_of_Mendeleev_appears_again_through_the_shifting_gas.__“This_element_has_3_electron_orbits_or_shells.”

Question 8 (of 67)

 


Mendeleev's Castle: QR Challenge

https://www.classtools.net/QR/decode.php?text=3rd_clue_–_This_element_has_17_protons.

Question 9 (of 67)

 


Mendeleev's Castle: QR Challenge

https://www.classtools.net/QR/decode.php?text=Room_4.__Good_Job!__Write_down_Chlorine(Cl)_on_door_3_on_your_paper.__In_the_next_room_you_find_yourselves_surrounded_by_bright_yellow_crystals_of_a_non-metal.__The_old_chemist_appears_and_says,_“This_element_used_to_be_known_by_the_name_brimstone.”

Question 10 (of 67)

 


Mendeleev's Castle: QR Challenge

https://www.classtools.net/QR/decode.php?text=2nd_clue_-__It_is_then_that_you_begin_to_notice_the_smell_of_rotten_eggs_and_it_makes_you_cover_your_nose.__The_room_is_tinted_yellow_by_light_reflecting_off_the_crystals.

Question 11 (of 67)

 


Mendeleev's Castle: QR Challenge

https://www.classtools.net/QR/decode.php?text=3rd_clue_–_This_element_has_6_valence_electrons.

Question 12 (of 67)

 


Mendeleev's Castle: QR Challenge

https://www.classtools.net/QR/decode.php?text=4th_clue_–_This_element_has_16_electrons.

Question 13 (of 67)

 


Mendeleev's Castle: QR Challenge

https://www.classtools.net/QR/decode.php?text=Room_5.__Good_Job!__Write_down_Sulfur_(S)_on_door_4_on_your_paper.__Now_to_the_next_room._You_are_in_a_room_made_of_a_clear_gas,_located_in_one_of_the_towers_of_the_Castle_Mendeleev.__The_holograph_tells_you,_“The_atoms_of_this_element_are_also_diatomic.”

Question 14 (of 67)

 


Mendeleev's Castle: QR Challenge

https://www.classtools.net/QR/decode.php?text=Clue_2_–_This_gas_is_considered_noble_because_it_has_a_full_outer_shell.

Question 15 (of 67)

 


Mendeleev's Castle: QR Challenge

https://www.classtools.net/QR/decode.php?text=Clue_3_-_Trying_to_talk_to_your_friends,_your_voice_sounds_high-pitched_and_squeaky,_like_Mickey_Mouse.

Question 16 (of 67)

 


Mendeleev's Castle: QR Challenge

https://www.classtools.net/QR/decode.php?text=Room_6.__Good_Job!__Write_down_Helium_(He)_on_door_5_on_your_paper.__The_first_clue_for_room_6:_The_sixth_room_you_are_transported_to_is_on_the_first_floor_of_the_castle.__It_is_made_of_a_silver-gray_metallic_solid.__Taking_a_knife_out_of_your_backpack,_you_are_able_to_cut_a_piece_of_this_alkali_metal_off_with_the_blade_because_the_substance_is_very_soft.

Question 17 (of 67)

 


Mendeleev's Castle: QR Challenge

https://www.classtools.net/QR/decode.php?text=Clue_2_-_Filling_a_small_glass_beaker_with_water_from_your_canteen,_you_drop_the_substance_in_to_observe_its_reaction_with_water.__It_floats_on_the_water_for_a_few_seconds,_then_there_is_a_small_explosion_as_sparks_are_sent_off.

Question 18 (of 67)

 


Mendeleev's Castle: QR Challenge

https://www.classtools.net/QR/decode.php?text=Clue_3_–_This_element_is_found_in_table_salt,_chemical_name:_sodium_chloride.

Question 19 (of 67)

 


Mendeleev's Castle: QR Challenge

https://www.classtools.net/QR/decode.php?text=Room_7.__Good_Job!__Write_down_sodium_(Na)_on_door_6_on_your_paper.__Now_to_the_next_room._The_first_clue_for_Room_7:_Next_you_are_transported_to_a_room_with_bright,_white,_waxy_walls.__When_you_turn_off_the_lights,_the_entire_room_glows_in_the_dark

Question 20 (of 67)

 


Mendeleev's Castle: QR Challenge

https://www.classtools.net/QR/decode.php?text=Clue_2-_This_metal_reacts_by_gaining_3_electrons.

Question 21 (of 67)

 


Mendeleev's Castle: QR Challenge

https://www.classtools.net/QR/decode.php?text=Clue_3_-_The_holograph_tells_you,_“This_element_occurs_in_teeth_and_bones_as_calcium_phosphate.”

Question 22 (of 67)

 


Mendeleev's Castle: QR Challenge

https://www.classtools.net/QR/decode.php?text=Clue_4_-_This_element_has_15_protons.

Question 23 (of 67)

 


Mendeleev's Castle: QR Challenge

https://www.classtools.net/QR/decode.php?text=Room_8.__Good_Job!__Write_down_phosphorus_(P)_on_door_7_on_your_paper.__Now_to_the_next_room._Your_first_clue_for_room_8:_You_are_now_in_a_room_made_of_a_shiny,_silver_element_is_next_to_the_secret_staircase_of_the_castle.__The_image_of_Mendeleev_reappears_to_say,_“When_this_element_reacts_it_gains_or_shares_4_electrons.”

Question 24 (of 67)

 


Mendeleev's Castle: QR Challenge

https://www.classtools.net/QR/decode.php?text=Clue_2_-___“This_element_appears_here_in_its_pure_form.__If_combined_with_traces_of_other_elements,_it_becomes_a_semiconductor_that_is_use_in_circuits_of_electronic_devices_such_as_calculators.”

Question 25 (of 67)

 


Mendeleev's Castle: QR Challenge

https://www.classtools.net/QR/decode.php?text=Clue_3_–_“It_and_oxygen_are_the_two_elements_that_make_up_sand_but_not_diamonds.”

Question 26 (of 67)

 


Mendeleev's Castle: QR Challenge

https://www.classtools.net/QR/decode.php?text=Clue_4_-_This_element_has_14_electrons.

Question 27 (of 67)

 


Mendeleev's Castle: QR Challenge

https://www.classtools.net/QR/decode.php?text=Room_9.__Good_Job!__Write_down_silicon_(Si)_on_door_8_on_your_paper.__Now_to_the_next_room.___Next_clue_for_Room_9:_The_ninth_room_is_composed_of_a_gas_that_has_no_color,_taste,_or_odor.__A_transparent_image_of_the_chemist_tells_you,_“This_element_is_diatomic.”

Question 28 (of 67)

 


Mendeleev's Castle: QR Challenge

https://www.classtools.net/QR/decode.php?text=Clue_2-_“This_element_makes_up_80%_of_normal_air.”

Question 29 (of 67)

 


Mendeleev's Castle: QR Challenge

https://www.classtools.net/QR/decode.php?text=Clue_3_-__“An_atom_of_this_element_has_2_electrons_in_its_first_shell_and_5_electrons_in_its_second_shell.”

Question 30 (of 67)

 


Mendeleev's Castle: QR Challenge

https://www.classtools.net/QR/decode.php?text=Clue_4_-_This_element_is_what_you_get_when_oxygen_loses_a_proton.

Question 31 (of 67)

 


Mendeleev's Castle: QR Challenge

https://www.classtools.net/QR/decode.php?text=Room10-_Good_Job!__Write_down_Nitrogen_(N)_on_door_9_on_your_paper.__Next_clue_for_Room_10:__The_next_room_you_are_transported_to_is_made_of_a_soft,_white_metal.__It_can_be_shiny_but_corrodes_and_turns_white_in_the_presence_of_air.

Question 32 (of 67)

 


Mendeleev's Castle: QR Challenge

https://www.classtools.net/QR/decode.php?text=Clue_2-_This_Room_is_on_the_second_floor_of_my_castle.

Question 33 (of 67)

 


Mendeleev's Castle: QR Challenge

https://www.classtools.net/QR/decode.php?text=Clue_3-_This_element_has_two_electron_orbitals_(shells)_and_one_valence_electron.

Question 34 (of 67)

 


Mendeleev's Castle: QR Challenge

https://www.classtools.net/QR/decode.php?text=Clue_4-_This_element_is_the_least_reactive_in_its_family.

Question 35 (of 67)

 


Mendeleev's Castle: QR Challenge

https://www.classtools.net/QR/decode.php?text=Room_11.__Good_Job!__Write_down_lithium_(Li)_on_door_10_on_your_paper._Next_clue_for_Room_11:_Next,_you_are_transported_to_a_room_in_the_corner_of_the_Castle_Mendeleev.__The_room_is_made_of_a_thick,_unreactive_gas.

Question 36 (of 67)

 


Mendeleev's Castle: QR Challenge

https://www.classtools.net/QR/decode.php?text=Clue_2_-_Mendeleev_flickers_into_view_to_tell_you,_“This_element_is_used_to_fill_light_bulbs.”

Question 37 (of 67)

 


Mendeleev's Castle: QR Challenge

https://www.classtools.net/QR/decode.php?text=Clue_3_-_The_atoms_of_this_element_have_8_electrons_in_their_third_and_final_shell.

Question 38 (of 67)

 


Mendeleev's Castle: QR Challenge

https://www.classtools.net/QR/decode.php?text=Clue_4-_This_element_has_18_electrons.

Question 39 (of 67)

 


Mendeleev's Castle: QR Challenge

https://www.classtools.net/QR/decode.php?text=Room_12.__Good_Job!__Write_down_Argon(Ar)_on_door_11_on_your_paper.__Next_clue_for_Room_12:_After_escaping_from_the_last_room_you_materialize_in_a_room_made_of_a_solid_substance.__Mendeleev’s_image_appears_in_front_of_you_and_says,_“This_element_is_the_basic_unit_for_all_living_things.”

Question 40 (of 67)

 


Mendeleev's Castle: QR Challenge

https://www.classtools.net/QR/decode.php?text=Clue_2_-__“Without_it,_jewelers_would_go_broke,_gas_stations_would_go_out_of_business,_and_every_breath_you_exhale_would_be_incomplete.”

Question 41 (of 67)

 


Mendeleev's Castle: QR Challenge

https://www.classtools.net/QR/decode.php?text=Clue_3-_"This_element_is_used_in_radioactive_dating."

Question 42 (of 67)

 


Mendeleev's Castle: QR Challenge

https://www.classtools.net/QR/decode.php?text=Clue_4_-__“The_element_has_6_neutrons_and_an_atomic_mass_of_12.”

Question 43 (of 67)

 


Mendeleev's Castle: QR Challenge

https://www.classtools.net/QR/decode.php?text=Room_13.__Good_Job!__Write_down_Carbon_(C)_on_door_12_on_your_paper.__Next_clue_for_Room_13:_The_next_room_you_enter_is_filled_with_a_gas.__The_gas_is_colorless_and_nonreactice.

Question 44 (of 67)

 


Mendeleev's Castle: QR Challenge

https://www.classtools.net/QR/decode.php?text=Clue_2_-_Mendeleev_appears,_telling_you,_“When_electricity_is_run_through_it,_the_gas_emits_a_brilliant_orange-red_light_when_contained_in_a_discharge_tube.”

Question 45 (of 67)

 


Mendeleev's Castle: QR Challenge

https://www.classtools.net/QR/decode.php?text=Clue_3_–_“Las_Vegas_wouldn’t_be_the_same_without_this_element.”

Question 46 (of 67)

 


Mendeleev's Castle: QR Challenge

https://www.classtools.net/QR/decode.php?text=Clue_4_–_“This_element_has_10_electrons_and_10_neutrons.”

Question 47 (of 67)

 


Mendeleev's Castle: QR Challenge

https://www.classtools.net/QR/decode.php?text=Room_14_Good_Job!__Write_down_Neon_(Ne)_on_door_13_on_your_paper.__Next_clue_for_Room_14:_This_room_is_made_of_a_light_gray_metal.__Again,_the_image_of_Mendeleev_speaks,_“This_element_is_so_strong,_hard,_and_elastic_that_it_is_used_in_alloys_to_reinforce_other_metals.__Its_melting_point_is_nearly_1300oC.”

Question 48 (of 67)

 


Mendeleev's Castle: QR Challenge

https://www.classtools.net/QR/decode.php?text=Clue_2_–_It_is_part_of_the_Alkaline_Earth_Metals_Family.

Question 49 (of 67)

 


Mendeleev's Castle: QR Challenge

https://www.classtools.net/QR/decode.php?text=Clue_3_–_It_reacts_by_losing_two_electrons.

Question 50 (of 67)

 


Mendeleev's Castle: QR Challenge

https://www.classtools.net/QR/decode.php?text=Clue_4_-_It_has_4_protons.

Question 51 (of 67)

 


Mendeleev's Castle: QR Challenge

https://www.classtools.net/QR/decode.php?text=Room_15.__Good_Job!__Write_down_Beryllium_(Be)_on_door_14_on_your_paper.__Next_clue_for_Room_15:_The_next_room_is_made_of_a_hard,_black,_shiny_material_and_then_suddenly_it_changes_to_a_brown_powder._The_old_chemist_appears_and_says_“This_does_not_conduct_heat_or_electricity_well.__It_can_withstand_really_high_heats_and_is_used_in_making_scientific_glassware."

Question 52 (of 67)

 


Mendeleev's Castle: QR Challenge

https://www.classtools.net/QR/decode.php?text=Clue_2_-_The_holograph_of_the_chemist_tells_you_the_atoms_of_this_element_have_2_electron_shells.

Question 53 (of 67)

 


Mendeleev's Castle: QR Challenge

https://www.classtools.net/QR/decode.php?text=Clue_3_–_This_element_is_a_metalloid_on_the_second_floor_of_the_castle.

Question 54 (of 67)

 


Mendeleev's Castle: QR Challenge

https://www.classtools.net/QR/decode.php?text=Clue_4_-_This_element_has_a_rounded_atomic_mass_of_11_and_6_neutrons.

Question 55 (of 67)

 


Mendeleev's Castle: QR Challenge

https://www.classtools.net/QR/decode.php?text=Room_16.__Good_Job!__Write_down_Boron_(B)_on_door_15_on_your_paper.__Next_clue_for_Room_16:_The_sixteenth_room_you_enter_is_made_of_a_greenish-yellow_gas.__The_image_tells_you,_“Be_very_careful,_this_element_is_the_most_reactive_of_the_nonmetals.”

Question 56 (of 67)

 


Mendeleev's Castle: QR Challenge

https://www.classtools.net/QR/decode.php?text=Clue_2_–_It_also_reacts_with_hydrocarbons_to_form_Teflon,_the_nonstick_coating_in_frying_pans.

Question 57 (of 67)

 


Mendeleev's Castle: QR Challenge

https://www.classtools.net/QR/decode.php?text=Clue_3_-___“The_atoms_of_this_halogen_combine_with_sodium_to_help_reduce_tooth_decay.”

Question 58 (of 67)

 


Mendeleev's Castle: QR Challenge

https://www.classtools.net/QR/decode.php?text=Clue_4_-_This_element's_atoms_have_9_protons.

Question 59 (of 67)

 


Mendeleev's Castle: QR Challenge

https://www.classtools.net/QR/decode.php?text=Room_17.__Good_Job!__Write_down_Fluorine_(F)_on_door_16_on_your_paper.__Next_clue_for_Room_17:_Next_you_have_been_transported_to_a_room_on_the_first_floor_of_the_Castle_Mendeleev_that_is_made_of_a_white_solid.__This_solid_can_be_shined_and_is_malleable.__It_is_fairly_reactive_but_it_does_not_have_to_be_kept_in_oil_to_keep_it_from_reacting.

Question 60 (of 67)

 


Mendeleev's Castle: QR Challenge

https://www.classtools.net/QR/decode.php?text=Clue_2_-_The_holograph_of_Dmitri_Mendeleev_reappears,_shifting_before_you_like_a_milky_ghost,_speaking_to_you_once_more.__“This_element_burns_brilliantly_in_air.__The_atoms_of_this_element_form_positive_ions_by_giving_up_two_electrons.”

Question 61 (of 67)

 


Mendeleev's Castle: QR Challenge

https://www.classtools.net/QR/decode.php?text=Clue_3_–_“This_element_is_widely_used_in_aerospace_industries_in_alloys_with_other_metals.__It_makes_a_very_strong_lightweight_ladder_with_aluminum.

Question 62 (of 67)

 


Mendeleev's Castle: QR Challenge

https://www.classtools.net/QR/decode.php?text=Clue_4-_This_element_has_12_electrons.

Question 63 (of 67)

 


Mendeleev's Castle: QR Challenge

https://www.classtools.net/QR/decode.php?text=Room_18.__Good_Job!__Write_down_Magnesium_(Mg)_on_door_17_on_your_paper.Next_clue_for_Room_18:_You_finally_find_yourself_in_the_second_tower_of_the_Castle_Mendeleev.__The_room_is_made_of_a_transparent_gas.

Question 64 (of 67)

 


Mendeleev's Castle: QR Challenge

https://www.classtools.net/QR/decode.php?text=Clue2_-__It_is_the_most_abundant_element_in_the_universe.

Question 65 (of 67)

 


Mendeleev's Castle: QR Challenge

https://www.classtools.net/QR/decode.php?text=Clue_3_-_This_element_is_the_simplest_and_lightest_of_all_the_elements.

Question 66 (of 67)

 


Mendeleev's Castle: QR Challenge

https://www.classtools.net/QR/decode.php?text=Clue_4_-_This_element_usually_has_no_neutrons.

Question 67 (of 67)