QR Challenge: 8th Grade Science Mega Scavenger Hunt

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

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

3. Print out the QR codes.

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

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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!

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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.

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Questions / Answers (teacher reference)

Question	Answer
1. 1. The (atomic number, atomic mass) of an atom tells you the number of protons and neutrons in its nucleus.	atomic mass
2. 2. The (atomic number, atomic mass) of an atom tells you the number of protons in its nucleus.	atomic number
3. 3. (Protons, Electrons, Neutrons) are negatively-charged subatomic particles found in an atom's electron cloud.	electrons
4. 4. (Protons, Electrons, Neutrons) are positively-charged subatomic particles found in an atom's nucleus.	protons
5. 5. (Electrons, Protons, Neutrons) are neutral particles with no charge that are found in an atom's nucleus.	neutrons
6. 6. Atoms with more protons than electrons or more electrons than protons are called (isotopes, ions).	ions
7. 7. What atom has an atomic number of 1?	hydrogen
8. 8. An atom's center, where its protons and neutrons are located, is its (electron cloud, nucleus).	nucleus
9. 9. As you move from left to right on the periodic table, the atomic numbers of the elements (increases, decreases, stays the same).	increases
10. 10. The periodic table's columns or vertical portions are called (periods, groups).	groups
11. 11. How many groups does the periodic table contain?	18
12. 12. The periodic table's rows are called (groups, periods).	periods
13. 13. The (group, period) an element is located in tells you the number of valence electrons an atom of that element would have.	group
14. 14. The (group, period) an element is located in indicates the number of energy levels surrounding its nucleus.	period
15. 15. What are an atom's outer-level electrons called?	valence electrons
16. 16. (Number of protons, number of neutrons, valence electrons) determine an element's chemical reactivity.	valence electrons
17. 17. Elements in group (1, 17, 18) have a valence shell that is completely filled with electrons.	18
18. 18. Which element located in group 1 is not considered a metal?	hydrogen
19. 19. Choose the element with the largest atomic mass: lithium, chlorine.	chlorine
20. 20. Elements in group (17, 18) are considered highly reactive since they are only one electron away from having a filled valence shell.	17
21. 21. Chemical reactions result in the formation of (the same, new) substances.	new
22. 22. (Evaporation, Boiling, A change in color) is a sign of a chemical change.	a change in color
23. 23. (Bubbles, A precipitate) indicates the formation of a new gas during a chemical change.	bubbles
24. 24. What law states that matter is never created or destroyed during a chemical reaction?	law of conservation of mass or matter
25. 25. A (chemical equation, chemical formula) is used to show the reactants and products involved in a chemical change.	chemical equation
26. 26. An object's (speed, velocity) describes its speed and direction.	velocity
27. 27. The formula s=d/t is used to calculate in object's (average speed, force, density).	average speed
28. 28. If a cat runs 20 meters in 5 seconds, what is the cat's average speed?	4 m/s
29. 29. Speeding up, slowing down, and changing direction all cause an object to...	accelerate
30. 30. Newton's (1st, 2nd, 3rd) Law of Motion is Force = mass x acceleration	2nd
31. 31. If a rock with a mass of 20 kilograms accelerates at 9.8 m/s2, what is the total force it will create?	196 N
32. 32. The (meter, kilogram, Newton) is the unit used for force.	Newton
33. 33. (Mass, Weight) describes the amount of matter in an object.	mass
34. 34. (Mass, Weight) describes the force of gravity acting upon an object.	weight
35. 35. (Balanced, Unbalanced) forces cause an object to accelerate.	unbalanced
36. 36. Mid-ocean ridges are found along (convergent, divergent) plate boundaries.	divergent
37. 37. Continental mountains typically form along (convergent, divergent) boundaries.	convergent
38. 38. (Convergent, Transform) boundaries do not create new landforms but are known for causing earthquakes.	transform
39. 39. A 10.0 cm3 sample of copper has a mass of 89.6 g. What is the density of copper?	8.96 g/cm3
40. 40. (Absolute, Relative) humidity describes the amount of water the air can hold at a given temperature.	relative
41. 41. (Cold, Hot) air has a greater capacity for holding water.	hot
42. 42. (Radiation, Convection, Conduction) describes the movement of thermal energy through air or liquids	convection
43. 43. The (equator, poles) receive direct, high-angle sun year-round, resulting in consistently warm atmospheric temperatures.	equator
44. 44. Why does Earth experience uneven heating?	the Earth's spherical shape
45. 45. (Weather, climate) describes the day-to-day conditions of the atmosphere in a particular region.	weather

 

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