1. International System of Units (SI)
Metric System
International System of Units (SI)

2. Basic Metric Units Length (m) Mass (kg) Volume (L) Temperature
Meter
Gram
Liter
Celsius (°C) or Kelvin (K)
Second
Electric current
Sustance Amount
Light Intensity
Length (m)
Mass (kg)
Volume (L)
Temperature
Time (s)
Ampere (A)
Mole (mol)
Candela (cd)

3. Basic units: m, l, g Many M mega 1 000 000 (106)
Kids k kilo (103)
Have h hecto (102)
Dropped da/dk deka (101)
Over Basic Unit (ONES) (100)
Dead d deci (10-1)
Converting c centi (10-2)
Metrics m milli (10-3)
m micro (10-6)
n nano (10-9)
A Angstrom (10-10)

4. Many kids have dropped over dead converting metrics
Bigger to smaller - Move decimal right
Smaller to bigger - Move decimal left 3 3 3
100 (m, l, g)
Basic Unit M k h da d c m μ n
Many kids have dropped over dead converting metrics
4.22
422. cm = m
6523. m m = m
69630 ml
69.63 l =
13 dal =
130,000 ml kg
230 mg =
0.230 g
9.23 g =

5. Celsius The Metric Temperature Scale
Also called the centigrade scale.
Definitions
0°Celsius(C) = 32°Fahrenheit(F) = water freezes
100°Celsius = 212°Fahrenheit = water boils
Conversions
°Celsius = 5/9 X (°Fahrenheit - 32°)
°Fahrenheit = (9/5 X °Celsius) + 32°
30 is hot,
20 is nice,
10 is chilly,
0 is ice.

6. Scientific Notation N X 10x
Moving Decimal to Left = x
Moving Decimal to Right = --x N=
6.238
x = 3
6.238 X 103 N=
2.1536
x = 2
X 102 N=
6.32
x = -4
6.32 X 10-4 N=
1.852
x =
1.852 X 100 N=
1.35
x = 3
1.35 X 103
x = -1 N=
1.202
1.202 X 10-1

7. REVIEW “QUIZ” 1) 345 cm = km 0.00345 2) 22ºC = 71.6 ºF
3) k h da (m,l,g) d c m
kilo-
hecto-
deka-
deci-
centi-
milli-
Fill in the missing prefixes.