What are Customary What are Customary UnitsUnits

Units of measurement used Units of measurement used

only in USA and a small only in USA and a small

country in central Africacountry in central Africa

Not based Not based on units of 10 as on units of 10 as

the Metric Systemthe Metric System

Customary Customary Units Units

of Volumeof Volume TeaspoonTeaspoon TablespoonTablespoon Fluid ounceFluid ounce CupCup PintPint QuartQuart GallonGallon

Mr. Gallon

Measuring spoonsMeasuring spoons Fluid once = fl. Oz.Fluid once = fl. Oz. Tablespoon = T or Tbs Tablespoon = T or Tbs teaspoon = tspteaspoon = tsp 1 fluid ounce = 2 T1 fluid ounce = 2 T 1 T = 2 tsp1 T = 2 tsp Measuring spoons can be Measuring spoons can be

used to measure used to measure liquidliquid or or solidssolids

Example:Example: 2 tsp of vanilla2 tsp of vanilla

1 tsp of salt1 tsp of salt How many teaspoons in a How many teaspoons in a

fluid ounce? fluid ounce?

2 x 2 = 4 tsp in 1 fl oz2 x 2 = 4 tsp in 1 fl oz

Measuring cupMeasuring cup

1 cup or c = 8 fl oz1 cup or c = 8 fl oz

2 cups = 16 fl oz2 cups = 16 fl oz

16 ounces = 1 16 ounces = 1

pintpint

2 cups = 1 pint2 cups = 1 pint

Blue milk carton:Blue milk carton: 1 cup 1 cup 8 ounces or oz8 ounces or oz The kind you drink in The kind you drink in

schoolschool

One pint of milk:One pint of milk: 2 cups2 cups 16 fluid ounces or oz16 fluid ounces or oz

One quart of milk:One quart of milk: 2 pints2 pints 4 cups4 cups 32 fluid ounces or oz32 fluid ounces or oz

Gallon of milk Gallon of milk equals?equals?

4 quarts4 quarts

8 pints8 pints

16 cups16 cups

128 fluid ounces128 fluid ounces

Solve these Solve these volume/capacity problemsvolume/capacity problems

1 liter = 1 liter = 34 US fluid ounces34 US fluid ounces

2 liter soda: 2 liter soda: 2 x 34 = 68 fluid ounces2 x 34 = 68 fluid ounces

Customary Units of Customary Units of lengthlength

From smallest to greatest length From smallest to greatest length the measurements are:the measurements are:

InchesInches

FeetFeetYardsYardsMilesMiles Solve these length problems

Customary Units of Customary Units of lengthlength

Standard in is the? ………………Standard in is the? ……………… How many inches in one How many inches in one

yard?.................yard?................. How many feet in a yard?................How many feet in a yard?................ How many inches in a foot?.................How many inches in a foot?................. How many feet in one How many feet in one

mile?...................mile?................... How many yards in a mile?...................How many yards in a mile?...................

Yard Yard

36 inches

1760 yards

3 feet12 inches5280 feet

CustomaryCustomary Units of Weight Units of Weight

Standard unit is Standard unit is the………………the………………

One pound One pound is ?............................is ?............................

2000 pounds = ?...............2000 pounds = ?...............

Solve these problems

pound or lb.16 ounces

or oz.1 Ton

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CustomaryCustomary MetricMetric

Boiling Point Boiling Point Boiling PointBoiling Point

212 Fahrenheit 212 Fahrenheit 100 Celsius 100 Celsius

Freezing Point Freezing Point Freezing Point Freezing Point

32 Fahrenheit 32 Fahrenheit 0 Celsius 0 Celsius

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oo oo

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Comparing Metric and Comparing Metric and Customary UnitsCustomary Units

1 pound = .45 kg or 450 gm1 pound = .45 kg or 450 gm 1 yard = .90 m or 90 cm1 yard = .90 m or 90 cm 1 cup = 250 ml1 cup = 250 ml 1 pint = 500 ml1 pint = 500 ml 1 quart = 1 L 1 quart = 1 L 1 gallon = 4 L 1 gallon = 4 L

Time 1 minute = 60 seconds

60 minutes = 1 hour 24 hours = 1 day 365 days = 1 year

What is Light year?

It is the distance light travels in one year

So how far is that? Light travels: 186,000 mi/sec 300,000 km/sec

What is Light year?In 1minute: 300,000 x 60 = 18,000,000 km

1.8 x 10 km

In 1 hour: 18,000,000 x 60 = 1,080,000,000 km

1.08 x 10 km

In 1 day: 1,080,000,000 x 24 = 25,920,000,000 km

2.592 x 10 km

In 1 year: 25,920,000,000 x 365 =

9,460,800,000,000 km

9.46 x 10 km

9 quadrillion, 460 billion, 800 trillion km

9

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10

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