1. Measuring with Metric Units
Length (m) meter
Volume (L) Liter
Mass (g) gram
* 1 L = dm3 = (.1m)3 = .001 m3
* Note the “standard” metric system is called MKS
meters, kilograms, seconds

2. A sugar cube has a volume of 1 cm3. 1 mL = 1 cm3
The volume of 20 drops of liquid from a medicine dropper is approximately 1 mL.
A sugar cube has a volume of 1 cm3.
1 mL = 1 cm3
(1 cc)
cc stands for cubic centimeters

3. 1 gallon of milk has about twice the volume of a 2-L bottle of soda.
3.8 L per gallon (check the toilet label 3.8 L/1 gallon per flush)

4. A 215 lb. person would weigh 97.5 kg
1 kg = lb
2.2 lb per kg Which is more weight 1 lb or 1 kg?
A 215 lb. person would weigh 97.5 kg

5. Metric Prefixes Prefix Symbol Multiplier Examples:
1 GB = 1,000,000,000 B
1 MJ = 1,000,000 J
1 kg = 1,000 g
BASE UNIT: 1 m 1 L g
1 cm = 0.01 m
1 mL = L
What’s above kilo? Below Micro?
1 µg = g
(light wavelength)
1 nm = m
(atoms)
(nuclei)

6. The Decimal Mover Trick
Metric Conversions
Write this down!
Converting between units is EASY!
The Decimal Mover Trick
k – – d c m m L g
Example:
120 mg to g
0.120 g 6

7. k – – d c m Convert each of the following. 15 cm = ______ m
7.38 kg = ______ g
607 mL = ______ L
94.5 g = ______ kg
0.15
7380
0.607
0.0945 7

8. 1. Which of the following is the base unit for mass?
Quick Quiz!
1. Which of the following is the base unit for mass?
meter
gram
liter
mole

9. 2. How many mL in 0.20 L? A. 200 mL B. 0.200 mL C. 0.002 mL D. 2000 mL
Quick Quiz.
2. How many mL in 0.20 L?
A. 200 mL
B mL
C mL
D mL 9

10. 1.34 x 100 g 1.34 x 102 cg 3. How many cg are in 1.34 g ? 1.34  10–3
Quick Quiz.
1.34 x 100 g
3. How many cg are in 1.34 g ?
1.34  10–3
13.4
134
1340
Convert 134 cg
to Sci. Not. :
_____________
1.34 x 102 cg 10