1. Measurement
& Metrics

2. SI Measurements (also known as “metric system”)
“SI” stands for “System International” or “International System of Measurement”

3. SI Measurements (also known as “metric system”)
What about it?
Common Language for scientists
Based on units of 10
Multiply or divide to go up or down when converting units
Prefixes determine “how much” of a unit

4. SI Measurements (also known as “metric system”)
Important BASE units to remember:
METERS = m (measures distance or length)
Measure with ruler/meterstick

5. LITERS = L (measures volume — how much space something takes up)
Measure with graduated cylinder/beaker
Or with a ruler (length x height x width)

6. GRAMS = g (measures mass)
Measure with triple beam balance/electronic balance

7. oCELSIUS = oC (measures temperature)
Measure with thermometer

8. BASE UNIT (gram, meter, liter)
Important PREFIXES to remember:
k = kilo- (means “1000”)
h = hecto-(means “100”)
d = deca-(means “10”)
BASE UNIT (gram, meter, liter)
d = deci-(means “1/10” or 0.1)
c = centi- (means “1/100” or .01)
m = milli- (means “1/1000” or .001)

9. King Hector Dragged Gram Ma Liter Down Central Main
Easy way to remember the order of prefixes:
King
Hector
Dragged
Gram Ma Liter
Down
Central
Main