1. An adult human has 4.65 L of blood. How many gallons of blood is that?
Conversion Factors: 1 quart = L
1 gallon = 4 quarts

2. What about Square and Cubic units?
Use the conversion factors you already know, but when you square or cube the unit, don’t forget to cube the number also!
Best way: Square or cube the ENITRE conversion factor
Example: Convert 4.3 cm3 to mm3
( )
4.3 cm mm 3
1 cm
4.3 cm mm3
13 cm3 =
= 4300 mm3

3. Learning Check
A Nalgene water bottle holds 1000 cm3 of dihydrogen monoxide (DHMO). How many cubic decimeters is that?

4. Solution
1000 cm dm 3
10 cm
( )
= 1 dm3
So, a dm3 is the same as a Liter !
A cm3 is the same as a milliliter.

5. 450g Ore 44g Iron 100 g ore Answer:2.0X 102 g Iron
A 100-gram sample of iron ore was found to contain 44 grams of iron. How many grams of iron are in a 450-gram sample of the ore
450g Ore 44g Iron
100 g ore
Answer:2.0X 102 g Iron

6. The density of a liquid is 0. 821 g/mL. What is the volume of 71
The density of a liquid is g/mL. What is the volume of 71.3 grams of this liquid?
71.3g 1mL .821g Answer 86.8 mL

7. San Francisco to Los Angeles is 1,135 miles
San Francisco to Los Angeles is 1,135 miles. If your vehicle gets 40 miles/gallon, and gasoline costs $3.50 per gallon, what is the cost to drive to LA from San Francisco?
1,135 miles 1 gallon $3.50 $ miles 1 gallon

8. If a soccer field has dimensions of 450 Meters X 220 Meters what is the area of the field in cm2?
450M X 220M= 99,000M2
99,000M CM 100CM Answer 990,000,000cM M M

9. A recipe in metric calls for 250 mL of milk
A recipe in metric calls for 250 mL of milk. How many kL of milk should be used?
250 mL 1 L 1kL 1000mL 1000L 2.5 X10-4 kL

10. Miss Hollingworth ran a half marathon (13. 1miles) in 145 minutes
Miss Hollingworth ran a half marathon (13.1miles) in 145 minutes. How many seconds would it take her to run to Portland?(151 miles)
151 miles 145minutes 60 seconds 13.1 miles 1 minute 1.00 X 105 seconds

11. And there it was…….. Eureka!!
Is it worth the excavation…. The labor… The cost… Only you can find out…