Transcript Chapter 4: Metric System Standard Units & Metric Conversions What is Metrics? Also Called International System (SI) Based on factors of ten.

Chapter 4: Metric System
Standard Units &
Metric Conversions
What is Metrics?
Also Called International
System (SI)
Based on factors of ten
Why use metrics in
science?
Factors of ten are much
easier to work with.
Research does not just occur
in the U.S.—a global
community requires a
universal measuring system.
Standard Units
Length meter
Mass kilogram
Time second
Temperature Deg. Celsius
Amount of substance mole
Derived Units
Area Square meter (m2)
Volume Cubic meter (m3)
Though this is the standard,
we will mostly use liters!
Density Kg/m3
Concentration Moles/liter
Energy Joules (force x length
Metric Prefixes
Each prefix signifies an
amount of base units
represented.
King Henry Died by drinking
cockroach milkshakes!!!
KiloHectoDekaBase unit
DeciCentiMilli-
1000
100
10
.1 or 1/10th
.01 or 1/100th
.001 or 1/1000th
Other prefixes
Mega- 1 000 000
Giga- 1 000 000 000
Tera- 1 000 000 000 000
Micro- .00001 or 1/1000000th
Nano- .000000001 or 1/billon
Pico- .000000000001
Sample Problems
268 grams =_____milligrams
5,638 centimeters =___meters
8 meters =_____Kilometers
Sample Problems
.0096 Kilograms =_____decigrams

13 liters =_____deciliters
2.85 milliliters =___centiliters
2.5 centigrams =_____grams
Sample Problems
28 Decameters =____Kilometers
.03 Kilometers =____centimeters
8 liters =____deciliters