Detailed Case Study Search the Archive Feedback

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

- Download a QR reader (e.g. I-Nigma | NeoReader | Kaywa) onto their mobile devices
- Bring these devices into the lesson.

4. Cut them out and place them around your class / school.

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.

## Question | ## Answer |

1. 1. What is the Independent Variable of the following Problem? "Does eating breakfast increase performance in school?" | eating breakfast |

2. 2. What is the Dependent Variable of the following Problem? "Is overall health decreased by smoking cigarette smoking?" | Overall health |

3. 3. This is the group in an experiment that does not receive the IV. | control group |

4. 4. I conducted an experiment at home in which I kept 1/2 bag of apples in the refrigerator and 1/2 bag in my cabinet. Problem: Does refrigeration keep apples from rotting? What is my experimental group? | refrigerated apples |

5. 5. I conducted an experiment at home in which I kept 1/2 bag of apples in the refrigerator and 1/2 bag in my cabinet. Problem: Does refrigeration keep apples from rotting? What is my control? | apples, bag |

6. 6. _________________ is an educated guess. | hypothesis |

7. 7. What does the mnemonic device "Paul Revere Hates Eggs And Cheese" stand for: | Problem, Research, Hypothesis, Experiment, Analysis, Conclusion |

8. 8. Which string length had the fastest swing? | 50 cm |

9. 9. Using the data table, what is your dependent variable? | # of swings |

10. 10. When conducting an experiment, the more ___________ the more valid your data. | trials/data |

11. 11. What is the control group in the data table? | no fertilizer |

12. 12. What is the dependent variable? | growth |

13. 13. What is the independent variable? | fertilizer amount |

14. 14. A young scientist wanted to test if type of battery impacts the number of hours the battery lasts. He bought 3 different types of batteries and tested them individually on the same flashlight. He recorded the number of hours each battery lasted. What is NOT constant in the experiment? | type of battery |

15. 15. What three words should be used in a hypothesis? | If....then....becasue |

16. 16. Is the following problem a testable problem? True or False: Are baseball players more athletic than soccer players? | False |

17. 17. Using the graph, which battery lasts the longest? | Energizer |

18. 18. Using the graph, which is a constant of the experiment? | Flashlight |

19. 19. There can only ever be _________ IV? | one |

20. 20. The hypothesis comes _____________ the experiment. | before |

https://www.classtools.net/QR/decode.php?text=1._What_is_the_Independent_Variable_of_the_following_Problem?__"Does_eating_breakfast_increase_performance_in_school?"

**Question 1 (of 20)**

https://www.classtools.net/QR/decode.php?text=2._What_is_the_Dependent_Variable_of_the_following_Problem?__"Is_overall_health_decreased_by_smoking_cigarette_smoking?"

**Question 2 (of 20)**

https://www.classtools.net/QR/decode.php?text=3._This_is_the_group_in_an_experiment_that_does_not_receive_the_IV.

**Question 3 (of 20)**

https://www.classtools.net/QR/decode.php?text=4._I_conducted_an_experiment_at_home_in_which_I_kept_1/2_bag_of_apples_in_the_refrigerator_and_1/2_bag_in_my_cabinet.__Problem:__Does_refrigeration_keep_apples_from_rotting?__What_is_my_experimental_group?

**Question 4 (of 20)**

https://www.classtools.net/QR/decode.php?text=5._I_conducted_an_experiment_at_home_in_which_I_kept_1/2_bag_of_apples_in_the_refrigerator_and_1/2_bag_in_my_cabinet.__Problem:__Does_refrigeration_keep_apples_from_rotting?_What_is_my_control?

**Question 5 (of 20)**

https://www.classtools.net/QR/decode.php?text=6.___________________is_an_educated_guess.

**Question 6 (of 20)**

https://www.classtools.net/QR/decode.php?text=7._What_does_the_mnemonic_device_"Paul_Revere_Hates_Eggs_And_Cheese"_stand_for:

**Question 7 (of 20)**

https://www.classtools.net/QR/decode.php?text=8._Which_string_length_had_the_fastest_swing?

**Question 8 (of 20)**

https://www.classtools.net/QR/decode.php?text=9.__Using_the_data_table,_what_is_your_dependent_variable?

**Question 9 (of 20)**

https://www.classtools.net/QR/decode.php?text=10.__When_conducting_an_experiment,_the_more_____________the_more_valid_your_data.

**Question 10 (of 20)**

https://www.classtools.net/QR/decode.php?text=11._What_is_the_control_group_in_the_data_table?

**Question 11 (of 20)**

https://www.classtools.net/QR/decode.php?text=12.__What_is_the_dependent_variable?

**Question 12 (of 20)**

https://www.classtools.net/QR/decode.php?text=13.__What_is_the_independent_variable?

**Question 13 (of 20)**

https://www.classtools.net/QR/decode.php?text=14.__A_young_scientist_wanted_to_test_if_type_of_battery_impacts_the_number_of_hours_the_battery_lasts.__He_bought_3_different_types_of_batteries_and_tested_them_individually_on_the_same_flashlight.___He_recorded_the_number_of_hours_each_battery_lasted.__What_is_NOT_constant_in_the_experiment?

**Question 14 (of 20)**

https://www.classtools.net/QR/decode.php?text=15.__What_three_words_should_be_used_in_a_hypothesis?

**Question 15 (of 20)**

https://www.classtools.net/QR/decode.php?text=16.__Is_the_following_problem_a_testable_problem?__True_or_False:__Are_baseball_players_more_athletic_than_soccer_players?

**Question 16 (of 20)**

https://www.classtools.net/QR/decode.php?text=17.__Using_the_graph,_which_battery_lasts_the_longest?

**Question 17 (of 20)**

https://www.classtools.net/QR/decode.php?text=18.__Using_the_graph,_which_is_a_constant_of_the_experiment?

**Question 18 (of 20)**

https://www.classtools.net/QR/decode.php?text=19.__There_can_only_ever_be___________IV?

**Question 19 (of 20)**

https://www.classtools.net/QR/decode.php?text=20.__The_hypothesis_comes_______________the_experiment.

**Question 20 (of 20)**