Unit Conversions CW
1. Write out the five equivalent statements from memory.
It’s good practice. Do it!
2. Convert 50.0 cg to g
3. Convert 2.31 x 108 nm into meters
4. Convert 4.251 x 10-4 kL into L
5. Convert 95.0°C into Kelvin
6. How many mL are in a 1.0 L bottle of soda?
7. How many mg are in 12.4 kg?
8. An Olympic swimming pool is 100.0 m long. How many m mis that?
9. What is your mass in mg if you have a mass of 85.2 kg?
10. Convert 128 mL into L
11. How many nanograms are in 0.0375 cg?
12. What temperature, in °C, is 316 K?
13. Write a list of three numbers that have good precision but poor accuracy.
14. Many sodas are 12.0 mL, how many microliters is that?
15. Convert 1.84 x 10-9 kg into mg
16. How many cm are in 1.00 km?
17. Convert 1.387 x 10-8 L into nanoliters
18. Convert -50.0°C to K
19. How many grams are in 13,000 m g ?
20. Write a list of 4 numbers that have good accuracy but poor precision.
21. Write the equivalence statements again!
Additional resources:

http://www.homeschoolmath.net/worksheets/measuring.php#metric

http://www.mathworksheets4kids.com/metric.html

http://www.math-drills.com/measurement.shtml
Unit Conversions CW Answers
1. Write out the five equivalent statements from memory. In your notes
1g
2. 5.00 x 101 cg
= 0.500 g
1x10 2 cg
1m
= 0.231 m
1x10 9 nm
1L
4. 4.251 x 10-4 kL
= 0.4251 L
1x10 -3 kL
5. 95.0 + 273 = 368 K
6. 1 L = 1 x 103 mL so 1.0 x 103 mL
3. 2.31 x 108 nm
1g
1x10 3 mg
4
4
7. 12.4 kg
= 1.24 x 10 g  1.24 x 10 g
= 1.24 x 107 mg
1x10 -3 kg
1g
8. .0 m
1x10 6 m m
= 1.000 x 108 m m
1m
9. 85.2 kg
1g
1x10 3 mg
4 g  8.52 x 104 g
=
8.52
x
10
= 8.52 x 107 mg
1x10 -3 kg
1g
1L
= 0.128 L
1x10 3 mL
1g
1x10 9 ng
-4 g  3.75 x 10-4 g
11. 0.0375 cg
=
3.75
x
10
= 3.75 x 105 ng
1x10 2 cg
1g
10. 128 mL
12. 316 – 273 = 43°C
13. 12.4, 12.3, and 12.5 while true answer is 14.6
1x10 6 m L
1L
-2 L  1.20 x 10-2 L
=
1.20
x
10
= 1.20 x 104 m L
1L
1x10 3 mL
1g
1x10 3 mg
-6 g 
15. 1.84 x 10-9 kg
=
1.84
x
10
= 1.84 x 10-3 mg
1x10 -3 kg
1g
14. 12.0 mL
1x10 2 cm
1m
3
3
16. 1.00 km
= 1.00 x 10 m  1.00 x 10 m
= 1.00 x 105 cm
1m
1x10 -3 km
1x10 9 nL
-8
17. 1.387 x 10 L
= 13.87 nL
1L
18. -50.0 + 273 = 223K
1g
19. How many grams are in 13,000 m g
= 0.013 g
1x10 6 m g
20. The true answer is 100 – set is 80, 90, 110, and 120