Conversions and scientific method practice B PDF

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1. Convert the following : For each case write the answer with the appropriate amount of significant digits. 1. 2. 3. 4. 5. 6. 7. 8. 9. 10. 11. 12. 13. 14. 15. 16. 17. 18. 19. 20. 21. 22. 23. 24. 25. 26. 27. 28. 29. 30.

1600.0 m2 = _______ km2 2050 cm3 = _______ Mm3 1.033 Mm = _______ km 245 565 mm = _______ Gm 20 099 m3 = _______ km3 499 m = _______ nm 10.034 mJ = _______________ cJ 36.45 cL = ______________ μL 0.05 cm3 = ______________ mm3 1024 B = ______________ kB 0.0325 kJ/mol = ______________ cJ /mol 1202.5 g/mL = ______________Mg/ L 0.42101 Gg = ______________ Mg 25.5 km = ______________ m 0.12907 cm = _____________ mm 756 900 μs = ______________ ms 5600.4 Ms = _____________ Gs 268 000 cm3 = ______________ km3 0.0075 Gm2 = _______________ km2 0.00091 TL = ______________ ML 0.00046 ks = ______________ cs 244475.3 nm/μs = ______________ dm/hs 4096 MB = ______________ GB 210 hm = ______________ cm 0.0002 μg = ______________ mg 448.5 cg = ______________ g 0.00034 μL = ______________ cL 2103.55 s = ______________ ks 11120.33 ng = ______________ cg 0.0000012 GL = ______________ cL

Krusty Krabs Breath Mints Mr. Krabs created a secret ingredient for a breath mint that he thinks will “cure” the bad breath people get from eating crabby patties at the Krusty Krab. He asked 100 customers with a history of bad breath to try his new breath mint. He had fifty customers (Group A) eat a breath mint after they finished eating a crabby patty. The other fifty (Group B) also received a breath mint after they finished the sandwich; however, it was just a regular breath mint and did not have the secret ingredient. Both groups were told that they were getting the breath mint that would cure their bad breath. Two hours after eating the crabby patties, thirty customers in Group A and ten customers in Group B reported having better breath than they normally had after eating crabby patties.

1. Which people are in the control group?

a. Group A

b. Group B

2. What is the variable?

a. The actual breath mint.

c. The secret ingredient in the breath mint.

b. The crabby patties.

d. How many crabby patties eaten.

3. What should Mr. Krabs’ conclusion be? a. The breath mint with the secret ingredient does reduce breath odor. b. The breath mint with the secret ingredient reduces breath odor over 50% of the time. c. The breath works, but it is not 100% effective. d. All of the above....