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QR Challenge: Earth's history 7Sci ch 4

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. fossilsthe preserved remains or traces of organisms that lived in the past
2. petrified fossil2a fossil formed when minerals replace all or part of an organism2
3. extinct3A type of organism that no longer exists on Earth is said to be _____________3
4. relative age4age compared with the ages of other rocks4
5. Intrusion5_____________ igneous rock is always younger in relation to the sedimentary rock layers which it passes5
6. half-life6The time it takes for half of the radioactive atoms in a sample of a radioactive element to decay is the element's _________6
7. radioactive decay7occurs when atoms of some elements break down to form atoms of another element7
8. absolute age6Geologists use radioactive dating to determine the _________ of rock8
9. uniformitarianiam9What principle states that the geologic processes that change Earth today also changed Earth in the past?9
10. trace fossils10Footprints and trails are examples of _____________________10
11. geologic time scaleGeologists divide Earth's long history into smaller units that make up the _________
12. carbon filmPlant leaves may form a fossil called a __________, a thin layer of carbon on rock.
13. unconformityA gap in the geologic record where some rock layers have been lost because of erosion is _____________
14. Index_________ fossils are helpful to geologists because they reveal the relative ages of the rock layers in which they occur.
15. Paleontologistsscientists who study fossils
16. molda hollow area in sediment in the shape of an organism or part of an organism
17. casta solid copy of the shape of an organism
18. evolutionthe change in living things over time
19. law of superpositionAccording to the ________________, in undisturbed horizontal sedimentary rock layers the oldest is at the bottom. Each higher layer is younger than the layers below it.
20. extrusionLava that hardens on the surface and forms igneous rock
21. faulta break in Earth's crust
22. eraOne of the three long units of geological time between the Precambrian and the present
23. periodOne of the units of geologic time into which geologists divide eras

 


Earth's history 7Sci ch 4: QR Challenge

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

Question 1 (of 23)

 


Earth's history 7Sci ch 4: QR Challenge

https://www.classtools.net/QR/decode.php?text=petrified_fossil2

Question 2 (of 23)

 


Earth's history 7Sci ch 4: QR Challenge

https://www.classtools.net/QR/decode.php?text=extinct3

Question 3 (of 23)

 


Earth's history 7Sci ch 4: QR Challenge

https://www.classtools.net/QR/decode.php?text=relative_age4

Question 4 (of 23)

 


Earth's history 7Sci ch 4: QR Challenge

https://www.classtools.net/QR/decode.php?text=Intrusion5

Question 5 (of 23)

 


Earth's history 7Sci ch 4: QR Challenge

https://www.classtools.net/QR/decode.php?text=half-life6

Question 6 (of 23)

 


Earth's history 7Sci ch 4: QR Challenge

https://www.classtools.net/QR/decode.php?text=radioactive_decay7

Question 7 (of 23)

 


Earth's history 7Sci ch 4: QR Challenge

https://www.classtools.net/QR/decode.php?text=absolute_age6

Question 8 (of 23)

 


Earth's history 7Sci ch 4: QR Challenge

https://www.classtools.net/QR/decode.php?text=uniformitarianiam9

Question 9 (of 23)

 


Earth's history 7Sci ch 4: QR Challenge

https://www.classtools.net/QR/decode.php?text=trace_fossils10

Question 10 (of 23)

 


Earth's history 7Sci ch 4: QR Challenge

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

Question 11 (of 23)

 


Earth's history 7Sci ch 4: QR Challenge

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

Question 12 (of 23)

 


Earth's history 7Sci ch 4: QR Challenge

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

Question 13 (of 23)

 


Earth's history 7Sci ch 4: QR Challenge

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

Question 14 (of 23)

 


Earth's history 7Sci ch 4: QR Challenge

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

Question 15 (of 23)

 


Earth's history 7Sci ch 4: QR Challenge

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

Question 16 (of 23)

 


Earth's history 7Sci ch 4: QR Challenge

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

Question 17 (of 23)

 


Earth's history 7Sci ch 4: QR Challenge

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

Question 18 (of 23)

 


Earth's history 7Sci ch 4: QR Challenge

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

Question 19 (of 23)

 


Earth's history 7Sci ch 4: QR Challenge

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

Question 20 (of 23)

 


Earth's history 7Sci ch 4: QR Challenge

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

Question 21 (of 23)

 


Earth's history 7Sci ch 4: QR Challenge

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

Question 22 (of 23)

 


Earth's history 7Sci ch 4: QR Challenge

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

Question 23 (of 23)