The Metric System. Base Ten Measurement. Why bother with the Metric System?. Scientists use the metric system as their system of measurement (International System of Units, SI). The Metric System is a decimal system, based on the number “10” and multiples of ten.
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The Metric System
Base Ten Measurement
What about the mega-meter or the giga-meter?
Length is usually measuredwith a ruler
Length is also called distance. Distance is used to determine velocity
Velocity = distance time
More matter means one of three things:
Mass is usually measuredwith a scale
Mass is sometimes called weight, though they are not quite the same.
Changes in gravity result in changes in weight,but mass stays the same
1 cm3 = 1 mL
1 g of H20 at 1° Celsius = I mL = 1 cm3
Liquid volume is usually measured with a graduated cylinder or beaker
(or a 2 L bottle)
Solid volume is measured with a ruler
5 x 5 x 5 = 125 cc (or cm3)
H20freezes at 0° C
H20boils at 100° C
3O° Celsius is pretty darn hot!
2O° Celsius feels quite nice
10° Celsius, grab a coat dude
O° Celsius, you’re seeing ice
So what is the temperature today, you’d say?
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