The Metric System Who uses it anyway? The Base Units and Prefixes... Length Mass Volume (liquids) Temperature Definition: the amount of space that matter (an object) takes up in 3 dimensions

Unit: Liter L

Tool: Graduated Cylinder

Beaker Definition: a measure of the average kinetic energy (energy of movement) of the particles in an object

Unit: Degrees Celcius C

Kelvin K

Tool: Thermometer

Temperature Probe Definition: how much matter an object is made of

Unit: Gram g

Tool: Balance

(double pan, triple beam, digital) Definition: distance from one point to another

Unit: meter m

Most used units: mm, cm

m, & km

Tool: metric ruler

meter stick

trundle wheel Almost The Whole World!

Every Country Except:

United States

Burma

Liberia k h da base unit d c m

kilo hecto deca (meter,liter,gram) deci centi milli Examples:

Length

kilometer hectometer decameter meter decimeter centimeter millimeter

km hm dam m dm cm mm

Mass

kilogram hectogram decagram gram decigram centigram milligram

kg hg dag g dg cg mg

Volume

kiloliter hectoliter decaliter liter deciliter centiliter milliliter

kL hL daL L dL cL mL Changing Metric Units To go from one unit of measurement to another unit simply:

begin at the unit you are starting with

move the decimal to the left or the right the necessary number of spaces until you get to the unit you are converting to The Magic of the Metric System 1 cm3 = 1 mL = 1 g

When using the metric system one can easily

go from units measuring mass or volume. Real World References the thickness of a credit card 1 cm= 10 mm about the width of a fingernail 1 m= 100 cm 1 m = 1000 mm the length of a guitar is about 1 meter a centimeter is about the length of a staple a mm is about 10 sheets of paper stacked on top of each other 1 km= 1000m a km is about a little over a half a mile the distance from Springfield to Decatur is about 63 km 1000 100 10 1 0.1 0.01 0.001 Remember the Order of Prefixes With This: King Henry Doesn't Usually Drink Chocolate Milk (kilo) (hecto) (deca) (unit: m, L, g) (deci) (centi) (milli) Volume (solids) Definition: the amount of space that matter takes up in 3 dimensions Unit: cm 3 Tool: ruler, tape measure Length x Width x Height Examples: 25.2 m= ? km Based on units of 10 Most used units: g & kg Most used units: L, mL Most used units: cm & m 3 3 Area Definition: The amount of space inside the boundary of a flat (2-dimensional) object such as a rectangle. Most common units used: cm, m, km 2 2 2 Tools used: metric ruler, metric measuring tape, trundle wheel k h da unit d c m

(m, l, g) 25.2 0.0252 To go from meters (m) to kilometers (km), the decimal point moves three spaces to the left. Zeros are placed where there are no numbers. k h da unit d c m

(m, l, g) 0.72 kg = ?mg 0.72 720000.0 To go from kilograms (kg) to milligrams (mg), the decimal moves six spaces to the right. Zeros are placed where there are no numbers. 382 cL = ? mL (length measurement) (mass measurement) (volume measurement) k h da unit d c m

(m, l, g) 382.0 3820.0 To go from centiliters (cL) to milliliters (mL), the decimal moves one to the right. Since the beginning number, 382, has no decimal, you add one at the end followed by a zero (382.0). Now you are able to move the decimal. Try these on your own:

0.0478 km = ? cm

7643.2 cm = ? hm

501.75 g = ?kg

84.7 L = ? mL Biggest Smallest

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# The Metric System

Everything one may need to know about how to use the metric system.

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