THE METRIC SYSTEM

Chemical Building Blocks 1.2Pages 22-27

WHY GO METRIC? Distance

1 foot =

1 yard =

1 mile =

12 inches 3 feet

5,280 feet

= 36 inches

= 1,760 yards = 63,360 inches!

WHY GO METRIC?

1/7,000 pound16 ounces1 short ton2,240 pounds

Weight1 grain =1 pound =2,000 pounds =1 long ton =

WHY GO METRIC? Volume

3 teaspoons = 1 tablespoon2 tablespoons = 1 fluid ounce3 tablespoons = 1 jigger1 cup = 8 fluid ounces2 cups = 1 pint2 pints = 1 quart4 quarts = 1 gallon

BASE UNITS Distance

–

Mass –

Liquid Volume –

Meter (m)

Gram (g)

Liter (L)

NATURE, NOT ARTIFICE The meter is defined as the distance

that light travels in 1/299,792,458 of a secondSpeed of light is 299,792,458 meters per

second

Liter is the volume of a 10 centimeter cube (1,000cm3)

The kilogram is based on the mass of 1 liter of water.

PREFIX Each prefix denotes a multiple of the

base unitDeca (da) : 10 (ten)Hecto (h): 100 (hundred)Kilo (k): 1,000

(thousand)Mega (M): 1,000,000

(million)Giga (G): 1,000,000,000

(billion)Tera (T): 1,000,000,000,000

(trillion)

PREFIX Each prefix denotes a multiple of the

base unitDecameter: 1dam = 10mHectometer:1hm = 100mKilometer: 1km = 1,000mMegameter: 1Mm = 1,000,000mGigameter: 1Gm = 1,000,000,000mTerameter: 1Tm = 1,000,000,000,000m

PREFIX Each prefix denotes a fraction of the

base unitDeci (d): 0.1 (tenth)Centi (c): 0.01 (hundredth)Milli (m): 0.001 (thousandth)Micro (µ): 0.000001 (millionth)

PREFIX Each prefix denotes a fraction of the

base unitDeciliter: 1dL = 0.1LCentiliter: 1cL = 0.01LMilliliter: 1mL = 0.001LMicroliter: 1µL = 0.000001L

WHICH IS THE CORRECT BASE UNIT FOR MASS?

1 •Meter

2 •Gram

3 •Liter

HOW MANY GRAMS ARE IN A KILOGRAM?

1 •1g

2 •10g

3 •100g

4 •1,000g

HOW MANY CENTIMETERS ARE IN A METER?

1 •1cm

2 •10cm

3 •100cm

4 •1,000cm

HOW MANY LITERS ARE IN A MILLILITER?

1 •0.001l

2 •0.001L

3 •0.01l

4 •0.01L

WHICH IS THE CORRECT BASE UNIT FOR VOLUME?

1 •Liter

2 •Meter

3 •Kilogram

4 •Cubic decimeter

WHICH TWO MEASUREMENTS ARE EQUIVALENT?

1 •1.7kg

2 •17g

3 •170mg

4 •1,700cg

WHICH TWO MEASUREMENTS ARE EQUIVALENT?

1 •22m

2 •2,200mm

3 •220cm

4 •2.2km