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Metric System Review For Biology Classes
SI - International System of Units is accepted as the standard for measurement. This system is based on 10.
Base Units used in SI are the meter, liter, gram and second.
Prefixes are attached to base units to form larger or smaller units of measurement.
Kilo- one thousand hecto- one hundred deka- ten base unit meter, liter, gram deci- one-tenth 1/10 centi- one-hundreth 1/100 milli- one-thousandth 1/1000
Mnemonic for remembering the order:King Henry Died By Drinking Chocolate Milk
Or… make up your own silly saying!
A symbol is used to represent each prefix & base unit.Kilo- k hecto- h deka- da or D gram (g) meter (m) liter (l)
Deci- d centi- c milli- m
Larger & smaller units of measurement in SI are obtained by multiplying and dividing the base unit by some multiple of ten.
Multiply to change from larger to smaller units & divide to change from smaller to larger units.NOTE: the base unit must always be the same (can’t convert meter to kilograms!
A short cut to do this is sometimes called the stair step methodA short cut to do this is sometimes called the stair step method. See the board & copy all examples.
Convert the following:10 m into cm 5 g into mg 200 m into km 500 L into mL 2.5 mL to L 35.5 cm to m .5 L to mL
Metric Conversions. The Prefixes!! Kilo Kilo 1000 units 1000 units Hecto Hecto 100 units 100 units Deca Deca 10 units 10 units Deci Deci 0.1 units 0.1.
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With King Henry…. King Henry Died Monday Drinking Chocolate Milk!
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