1. Measurement Systems

2. American / English units Scientific / International / SI Units
Imperial System
Metric System
Length
inches, feet, miles
cm, meters, kilometers
Volume
fluid ounces, pints, quarts, gallons
mL, liters, kL
Mass
ounces, pounds
grams, kilograms
Temperature
Fahrenheit
Celsius
Velocity
mph
kph

3. King Henry Died Unusually Drinking Chocolate Milk
symbol k h da
metric system d c m
prefix
kilo-
hecto-
deka-
base unit
deci-
centi-
milli-
multiple
0.001
0.01
0.1 1 10
100
1000
length
Kilometer km
hectometer hm
dekameter dam
meter
decimeter dm
centimeter cm
millimeter mm
volume
kiloliter kL
hectoliter hL
dekaliter
daL
liter L
deciliter dL
centiliter cL
milliliter mL
mass
Kilogram kg
hectogram hg
dekagram dag
gram g
decigram dg
Centigram cg
milligram mg

4. Metric System Chart
Metric System Chart

5. Meniscus = the curve of water in a graduated cylinder,
always read from the bottom

7. Practice reading these measurements:1. 2. 3.
________ °C

8. EXAMPLES:

11. Density

12. Density

14. High Accuracy High Precision
How close a measured value is to a true value
Precision
How close measured values are to each other
The more decimal points, the more precise a tool is
2.34 grams vs. 2.3 grams
Low Accuracy High Precision
High Accuracy Low Precision
High Accuracy High Precision

15. Accuracy Examples: Precision Examples:
Boiling point of water is 100⁰C but the thermometer
reads 99⁰C
The recipe calls for ¾ cup of sugar but your sister accidentally measures out ⅞ cup of sugar
Precision Examples:
Mr. McCutcheon says he has about 100 students but Mr. Harabin knows that he only has 89
Jimmy measured the ounces of gold he had at about 10 but Pauly knew that he had exactly 12.35