1. The Metric System
Objective: Identifying what units are used for different measurements and how to convert measurements.

2. International System of Units
International System of Units (SI)
Seven units of measurement known as the basic set which other units are derived from

3. International System of Units
Unit Symbols
Symbols used to define a number based on what is being measured
Length = meter (m)
Mass = kilogram (kg)
Force = newton (N)
Time = second (s)
Area = square meters (m2)
Volume = cubic meters (m3)
Density = grams per centimeters cubed(g/cm3)
Temperature = kelvin (K)

4. Conversions Temperature Conversion °F to °C = 5/9(°F - 32 °)
°C to °F = 9/5(°C) + 32 °
°C to K = °C
Example 1: Convert 32 °F to °C.
Example 2: Convert 29 °C to K.

5. Conversions Steps: Find the prefix. (beginning of the word)
kilo
hecto
deka
Base Unit
deci
centi
milli
Steps:
Find the prefix. (beginning of the word)
Find out what you are converting to.
Count the number of stairs you need to move.
What direction did you move in?
Move the decimal point the same to same number of stairs and the same direction of motion.

6. Conversion Example 1: Convert 45 centimeters into meters.
kilo
hecto
deka
Base Unit
deci
centi
milli
Example 1: Convert 45 centimeters into meters.
Example 2: Convert 9 kilometers into decimeters

7. Calculations
Density
The amount of mass (g) in a given volume (cm3) of an object
Density = mass / volume
High Density = Sink
Low Density = Float
Water has a density of 1g/cm3