1. Name ________________________________________ Date __________________________
Mrs. Labuski / Mrs. Portsmore Period ____________ Unit 7 lesson 8B Conversions
Between Systems OC 5-6
VOCABULARY DEFINITION EXAMPLE
A conversion factor is a ratio of
two equivalent measurements.
CONVERSION Since the two measurements in a SEE EXAMPLE
FACTOR conversion factor are equivalent, a BELOW
conversion factor is a ratio
equivalent to 1.
gallon ≈ 3.79 liters

2. Today we will focus on using CONVERSTION FACTORS to complete the conversions.
Round to the nearest hundredth. (Leave two digits after the decimal.)
1 ) 5.5quarts ≈5.20 liters 5 )5.54 gallons ≈ 21liters
have • c.f. ≈ unknown have • c.f. ≈ unknown
5.5 q • 0.946L ≈ 5.203 21 • 1 gallon ≈ 21
1 qt liters 3.79 3.79
liters 21 ÷ 3.79 =
5.54
6 ) 6.5quarts ≈6.15 liters
2 ) 12inches ≈30.48 centimeters have • c.f. ≈ unknown
have • c.f. ≈ unknown
6.5 • 0.946 L ≈ 6.149
12 • 2.54 ≈ 30.48 quarts 1 quart
inches 1 inch
3 ) 17.5yards ≈16.00 meters 7 )27.35 yards ≈ 25meters
have • c.f. ≈ unknown have • c.f. ≈ unknown
17.5 • 0.914 ≈ 15.995 25 • 1 yard ≈ 25
yards 1 yard meters 0.914 0.914
meters 25 ÷0.914=
27.35
4 )0.35 ounces ≈10 grams
have • c.f. ≈ unknown 8 ) 14.5miles ≈23.35 kilometers
10 • 1 ounce ≈ 10 have • c.f. ≈ unknown
grams 28.4 28.4 14.5 • 1.61 km ≈ 23.345
grams miles 1 mile
10 ÷ 28.4
=
0.352

3. Name ________________________________________ Date __________________________
Mrs. Labuski / Mrs. Portsmore Period ____________ Unit 7 lesson 8B Conversions
Between Systems OC 5-6
VOCABULARY DEFINITION EXAMPLE
CONVERSION
FACTOR
gallon ≈ 3.79 liters

4. Today we will focus on using CONVERSTION FACTORS to complete the conversions.
Round to the nearest hundredth. (Leave two digits after the decimal.)
1 ) 5.5quarts ≈ _________ liters 5 ) _________ gallons ≈ 21liters
have • c.f. ≈ unknown have • c.f. ≈ unknown
5.5 q • 0.946L ≈ 5.203 • ≈
1L
6 ) 6.5quarts ≈ _________ liters
2 ) 12inches ≈ _________ centimeters have • c.f. ≈ unknown
have • c.f. ≈ unknown • ≈
• ≈
7 ) _________ yards ≈ 25meters
3 ) 17.5yards ≈ _________ meters have • c.f. ≈ unknown
have • c.f. ≈ unknown • ≈
• ≈
8 ) 14.5miles ≈_________ kilometers
4 )_______ ounces ≈10 grams have • c.f. ≈ unknown
have • c.f. ≈ unknown • ≈
• ≈