 # AKA: System Internationale (SI). History  Metric system or System Internationale (SI) was developed in order to have standardized measurements As communication.

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AKA: System Internationale (SI)

History  Metric system or System Internationale (SI) was developed in order to have standardized measurements As communication and travel increased, the need for standardization increased (shipping)

Length  Distance from one point to another point  Basic unit is a METER (m)  We also use Kilometer (Km), centimeter (cm) and millimeter (mm)  Measure with a ruler or tape measure

Length Approximations  Kilometer (Km) = 1,000 meters About the distance from bike rack at LSMS to baseball field at Centennial  Meter (m) About the distance from the floor to a door handle  Centimeter (cm) = 1/100 of a meter About the width of your pinky  Millimeter (mm) = 1/1,000 of a meter About the thickness of a dime

Volume  Amount of space an object takes up  Basic unit is a Liter (L)  We also use milliliter (mL) and Cubic centimeter (cm 3 )  mL = cm 3  Measure with a ruler and math or graduated cylinder (meniscus)

Volume Approximations  Liter (L) About the volume of a Nalgene water bottle  Milliliter and Cubic Centimeter = 1/1,000 of a Liter About one drop from a medicine dropper

Mass  Amount of matter in an object  Basic unit is a Gram (g)  We also use Kilogram (Kg)  Measured with a scale or balance

Mass Approximations  Gram (g) About the weight of a paper clip  Kilogram (Kg) = 1,000 grams About the weight of a Harry Potter book (hard back)

PrefixMeaning Kilo (K)1,000 Hecto (H)100 Deca (D)10 Base Unit (m, l, g)1 deci (d)0.1 centi (c)0.01 milli (m)0.001

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