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METRICS

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**Measurements are relative!!**

Foot = human foot Inch = 3 barley corns Yard = nose to outstretched fingertip Mile = 1,000 paces Gallon = simply the name for a pail

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**Why is there a need for one system of measurement?**

Universal acceptance Accurate measurement

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**Do you know our current system?**

How many inches in a foot? How many feet in a yard? How many feet in a mile? How many ounces in a cup? How many cups in pint? How many pints in a quart? 5,280 feet in a mile (note nautical miles are different). 8 fluid ounces in a cup. 2 cups in a pint / 2 pints in quart

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**Le Systeme International d’Unites**

SI

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**7 Standard Metric Base Units**

Unit of length (metre) Unit of mass (kilogram) Unit of temperature (kelvin) Unit of time (second) Unit of electric current (ampere) Unit of amount of substance (mole) Unit of luminous intensity (candela)

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**Measurements Length (m) Mass (kg) Volume (L) Temperature (K or C)**

Time (s)

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**English to Metric conversions**

1 gallon = 3.78 liters 1 pound = 453 grams 1 inch = 2.54 centimeters 1 foot = meters 1 yard = .91 meters 1 mile = 1, 609 meters 1 tsp = 5 ml

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**Length Analogies 1 km = 5 city blocks (8 blocks = 1 mile)**

1 hm = little longer than a football field 1 dam= about the height of a 3-story building 1 m = length of a baseball bat or golf club 1 dm = nearly the length of a crayon 1 cm = width of little finger / pencil 1 mm = thickness of an ID card

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**Mass Analogies 1 kg = 2.2 lbs = approx. weight of textbook**

1 hg = thin razor cell phone 1dag = 2 nickels 1 g = weight of a small paperclip 1dg = toothpick 1cg = adult housefly 1 mg = weight of a piece of dust

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**Volume Analogies 1 kl = large aquarium 1 hl = helium tank**

1 dal = medium-sized bucket 1 L = water bottle 1 dl = small-sized hair products 1 cl = 1 ml = single drop of liquid / teardrop

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**Temperature Analogies**

kelvins degrees celsius degrees fahrenheit symbol °K °C °F boiling point of water 373.15 100. 212. average human body temperature 37. 98.6 average room temperature 20. to 25. 68. to 77. freezing point of water 273.15 0. 32. absolute zero Celsius memory aid: When it's zero it's freezing, when it's 10 it's not, when it's 20 it's warm, when it's 30 it's hot!

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Metric Conversions

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Kilo Big prefix Means- Times 1000

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Hecto Big prefix Means- Times 100

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Deka Big prefix Means- Times 10

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**X This is where the root of each prefix is. This is one.**

1 gram (g) – 1 meter (m) – 1 Liter (L)

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Deci Small prefix Means- Divided by 10

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Centi Small prefix Means- Divided by 100

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Milli Small prefix Means- Divided by 1000

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**X 1 gram = _____ kg 0.001 1 gram = _____ hg 0.01 1 gram = _____ dag**

0.1 X _____ gram = 1 dg 0.1 _____ gram = 1 cg .01 _____ gram = 1 mg 0.001

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**Q U I Z Q U I Z _____ gram = 1 dg 0.1 1 gram = _____ kg 0.001**

1 gram = _____ dag 0.1 _____ gram = 1 mg 0.001 _____ gram = 1 cg 0.01 1 gram = _____ hg 0.01

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**approximately the length of 6 city blocks 1 HECTOMETER **

1 KILOMETER approximately the length of 6 city blocks 1 HECTOMETER little longer than a football field 1 DEKAMETER about the height of a 3-story building 1 METER about as long as a baseball bat about the height of the door handle from the floor 1 DECIMETER nearly the length of a crayon 1 CENTIMETER width of your pinky finger 1 MILLIMETER thickness of a dime

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