Measurement & Metrics
SI Measurements (also known as “metric system”) “SI” stands for “System International” or “International System of Measurement”
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
SI Measurements (also known as “metric system”) Important BASE units to remember: METERS = m (measures distance or length) Measure with ruler/meterstick
LITERS = L (measures volume — how much space something takes up) Measure with graduated cylinder/beaker Or with a ruler (length x height x width)
GRAMS = g (measures mass) Measure with triple beam balance/scale
oCELSIUS = oC (measures temperature) Measure with thermometer
BASE UNIT (liter, meter, gram) Important PREFIXES to remember: k = kilo- (means “1000”) h = hecto-(means “100”) d = deca-(means “10”) BASE UNIT (liter, meter, gram) d = deci-(means “1/10” or 0.1) c = centi- (means “1/100” or .01) m = milli- (means “1/1000” or .001)
Kids Have Dreams But Cost Money Easy way to remember the order of prefixes: Kids Have Dreams But Cost Money Measurement by Brainpop