1. Measurements
9/15/10

2. SI Units International System of Units Based on powers of 10
Metric System
Based on powers of 10
Decimal system
Composed of base units and prefixes that indicates the relationship to the base unit.

3. SI Base Units--Temperature
Measured in degrees Celsius (°C)
For water, freezing temp is 0°C and boiling temp is 100°C

4. SI Base Units--Length Measured in meters (m) Metric Units
1 Kilometer (km) = 1000 meters
1 Meter = 100 Centimeters (cm)
1 Meter = 1000 Millimeters (mm)
Which is larger?
1 meter or 105 centimeters
4 kilometers or 4400 meters

5. SI Base Units--Mass Measured in grams (g) Metric Units
1 Kilogram (km) = 1000 Grams (g)
1 Gram (g) = 1000 Milligrams (mg)
Which is larger?
1 kilogram or 1500 grams
1200 milligrams or 1 gram

6. SI Base Units--Volume Measured in liters (L) Metric Units
1 liter (L) = 1000 milliliters (mL)
1 milliliter (mL) = 1 cm3 (or cc) = 1 gram*
Which is larger?
1 liter or 1500 milliliters
200 milliliters or 1.2 liters

7. SI Prefixes Kilo- = 1000 of the base unit
Hecta- = 100 of the base unit
Deca- = 10 of the base unit
BASE UNIT (g, L, m)
Deci- = 0.1 of the base unit (1/10th)
Centi- = 0.01 of the base unit (1/100th)
Milli- = of the base unit (1/1000th)