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QR Challenge: Chemistry Unit 1 Metrics and Scientific notation

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. 1. Convert to S.N.: 0.0045834 mm4.5 X 10-3
2. 2. Convert to S.N.: 438,904 s 4.38904 X 102
3. 3. Convert to long form: 7.6352 X 10-3 kg.007
4. 4. Convert to long form: 3.402 X 103 g3,402
5. 5. If you move the decimal place to the left to convert a number to scientific notation, will the power of 10 be positive or negative?positive
6. 6. How does scientific notation differ from ordinary notation?scientific notation makes writing small/large numbers easier
7. 7. Convert 5.70 g to mg5700 mg
8. 8. Convert 783 g to kg.783
9. 9. When dividing numbers in scientific notation, what must you do with the exponents?subtract
10. 10. (6.23 X 106) + (5.34 X 106)11.57
11. 11. (3.57 X 104) - (1.43 X 103)3.427
12. 12. (4.8 X 105) X (2.0 X 103)9.6 X 108
13. 13. (8.42 X 108)/(4.21 X 103)2 X 105
14. 14. Why is the SI system used in Science?makes communication easier
15. 15. When subtracting or adding 2 numbers in scientific notation, why do the exponents need to be the same?correct place values
16. 16. (6.48 X 10-3)-(2.81 X 10-3)3.67 X 10-3

 


Chemistry Unit 1 Metrics and Scientific notation: QR Challenge

https://www.classtools.net/QR/decode.php?text=1.__Convert_to_S.N.:__0.0045834_mm

Question 1 (of 16)

 


Chemistry Unit 1 Metrics and Scientific notation: QR Challenge

https://www.classtools.net/QR/decode.php?text=2.__Convert_to_S.N.:__438,904_s

Question 2 (of 16)

 


Chemistry Unit 1 Metrics and Scientific notation: QR Challenge

https://www.classtools.net/QR/decode.php?text=3.__Convert_to_long_form:__7.6352_X_10-3_kg

Question 3 (of 16)

 


Chemistry Unit 1 Metrics and Scientific notation: QR Challenge

https://www.classtools.net/QR/decode.php?text=4.__Convert_to_long_form:__3.402_X_103_g

Question 4 (of 16)

 


Chemistry Unit 1 Metrics and Scientific notation: QR Challenge

https://www.classtools.net/QR/decode.php?text=5.__If_you_move_the_decimal_place_to_the_left_to_convert_a_number_to_scientific_notation,_will_the_power_of_10_be_positive_or_negative?

Question 5 (of 16)

 


Chemistry Unit 1 Metrics and Scientific notation: QR Challenge

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

Question 6 (of 16)

 


Chemistry Unit 1 Metrics and Scientific notation: QR Challenge

https://www.classtools.net/QR/decode.php?text=7.__Convert_5.70_g_to_mg

Question 7 (of 16)

 


Chemistry Unit 1 Metrics and Scientific notation: QR Challenge

https://www.classtools.net/QR/decode.php?text=8.__Convert_783_g_to_kg

Question 8 (of 16)

 


Chemistry Unit 1 Metrics and Scientific notation: QR Challenge

https://www.classtools.net/QR/decode.php?text=9.__When_dividing_numbers_in_scientific_notation,_what_must_you_do_with_the_exponents?

Question 9 (of 16)

 


Chemistry Unit 1 Metrics and Scientific notation: QR Challenge

https://www.classtools.net/QR/decode.php?text=10._(6.23_X_106)_+_(5.34_X_106)

Question 10 (of 16)

 


Chemistry Unit 1 Metrics and Scientific notation: QR Challenge

https://www.classtools.net/QR/decode.php?text=11._(3.57_X_104)_-_(1.43_X_103)

Question 11 (of 16)

 


Chemistry Unit 1 Metrics and Scientific notation: QR Challenge

https://www.classtools.net/QR/decode.php?text=12._(4.8_X_105)_X_(2.0_X_103)

Question 12 (of 16)

 


Chemistry Unit 1 Metrics and Scientific notation: QR Challenge

https://www.classtools.net/QR/decode.php?text=13._(8.42_X_108)/(4.21_X_103)

Question 13 (of 16)

 


Chemistry Unit 1 Metrics and Scientific notation: QR Challenge

https://www.classtools.net/QR/decode.php?text=14.__Why_is_the_SI_system_used_in_Science?

Question 14 (of 16)

 


Chemistry Unit 1 Metrics and Scientific notation: QR Challenge

https://www.classtools.net/QR/decode.php?text=15.__When_subtracting_or_adding_2_numbers_in_scientific_notation,_why_do_the_exponents_need_to_be_the_same?

Question 15 (of 16)

 


Chemistry Unit 1 Metrics and Scientific notation: QR Challenge

https://www.classtools.net/QR/decode.php?text=16.__(6.48_X_10-3)-(2.81_X_10-3)

Question 16 (of 16)