1. REVIEW SCIENTIFIC MEASUREMENT

2. True or false All measurements in science are accurate and precise. One digit is always estimated.

3. How close a measurement is to other measurements precision

4. How close a measurement is to its true value accuracy

5. 10 6 m =1 Mm

6. 10 -12 g =1 pg

7. Complete the following conversion factors: 1 µL L10 -6

8. Complete the following conversion factors: 1 mg g 10 -3

9. Complete the following conversion factors: 1 pm m 10 -12

10. Complete the following conversion factors: 1 ng g 10 -9

11. Complete the following conversion factors: 1 Mm m 10 6

12. Complete the following conversion factors: 1 Gm m 10 9

13. How many sig fig? 0.0120 L 505000 pm 0.61900 Mm 90290 mg 0.00000700120 nm 3 3 5 4 6 7,000,000,000,000 km1

14. Convert 2 km to m. 2000 m

15. Convert 24 g to kg. 0.024 kg

16. Convert 19290 mg to g. 19.29 g

17. Convert 11.9 g to mg. 11900 mg

18. Convert 604 mg to kg. 0.000604 kg

19. Convert 1011 mm to cm. 101.1 cm

20. Convert 1011 mm to dm. 10.11 dm

21. Convert 1011 mm to hm. 0.01011 hm

22. Convert 0.44 Mm to m. 440000 m

23. Convert 0.44 Mm to m. 0.44 x 10 6 m 4.4 x 10 5 m

24. Convert 3.1 mg to µg. 3100 µg

25. Convert 0.022 mg to ng. 22000 ng

26. Convert 0.022 mg to ng. 2.2 x 10 4 ng 0.022 x 10 6 ng

27. Convert 64.2 pm to nm. 0.0642 nm

28. Convert 64.2 pm to nm. 64.2 X 10 -3 nm 6.42 X 10 -2 nm

29. Convert 9.1 X 10 7 nm to m. 0.091 m

30. Convert 9.1 X 10 7 nm to m. 0.091 m 9.1 x 10 7 x 10 -9 9.1 x 10 -2 m

31. Convert 0.000864 mm to pm. 8.64 x 10 -4 8.64 X 10 5 pm x 10 9

32. Which measurement is largest? 380 pm 300 nm 24 µm 1.1 mm

33. Which measurement is smallest? 580 dam 7 km 2.4 Gm 1.1 Mm

34. Which measurement is larger? 3800 g or 3 kg 3000 g

35. Which measurement is smaller? 780 mg or 0.5 g 500 mg

36. Which measurement is larger? 50 dam or 6 hm 60 dam

37. Which measurement is smaller? 3 km or 25 hm 30 hm

38. Which measurement is larger? 0.2 mg or 300 µg 200 µg

39. Which measurement is smaller? 0.7 Gm or 800 Mm 700 Mm

40. Which measurement is larger? 7 Gm or 7 x 10 6 m 7 x 10 9 m

41. Which measurement is smaller? 6 ng or 600 pg 6000 pg