1. Includes 2 parts: Number (ex. 1, 2, 3, 4) Unit (ex. cm, mg, kL)
Measurement
Includes 2 parts:
Number (ex. 1, 2, 3, 4)
Unit (ex. cm, mg, kL)
Ex. 8 cm, 22 mg, kL

2. Prefixes: come before a word
Centi- centimeter (cm) 1/100
Century (100 years)
Milli- milligram (mg) 1/1000
Millennium (1000 years)
Kilo- kiloliter (kL) x 1000
1000x larger

3. The Metric System

4. Length Meter (m): basic unit for length Meter Stick: tool used to
measure length

5. Meter Stick

6. Mass amount of matter (stuff) in an object Kilogram (kg) – basic
unit of mass
Balance - tool used to measure mass

7. Volume: amount of space an object takes up Liter (L) – basic unit
of volume
Graduated cylinder – tool
used to measure liquid volume

8. Meniscus - bottom curve of
water line (in a graduated cylinder)
Cubic centimeter - cm3 = mL
(length x width x height)

9. Temperature Celsius – metric measurement for temperature
Thermometer – tool used to measure temperature

10. Examples - Boiling Temp. 100 oC - Freezing Temp. 0 oC
- Body Temp oC
- Room Temp oC

11. Conversion Factor a fraction that always equals “1” 1 m = 1000 mm
Length
1 m = 1000 mm
1 m = 100 cm
1000 m = 1 Km
1 cm = 10 mm

12. Measuring Length How many millimeters are in 1 centimeter?
1 centimeter = 10 millimeters
How many millimeters are in 1 centimeter?
What is the length of the line in centimeters? _______cm
What is the length of the line in millimeters? _______mm
What is the length of the line to the nearest centimeter? ________cm
HINT: Round to the nearest centimeter – no decimals.
Ruler:

13. Conversion Factor Volume 1 L = 1000 mL 1 L = 100 cL 1000 L = 1 KL
1 cL = 10 mL

14. Conversion Factor Mass 1 g = 1000 mg 1 g = 100 cg 1000 g = 1 Kg
1 cg = 10 mg

15. Measurement/Metric System
What are 4 types of measurement?
What are some tools used for measurement?
1. Length
2. Mass
3. Volume
4. Temperature
What are the 2 parts of a measurement?
- Number and Unit
1. Meter Stick
2. Balance
3. Grad. Cylinder
4. Thermometer
Identify 3 prefixes.
* Centi- * Milli-
* Kilo-

16. a skill of converting one unit to another
Dimensional Analysis
a skill of converting one unit to another
The length of a student’s pencil is 5.4 cm.
What is this measurement in mm?

17. Given: 5.4 cm Solve: How many mm? Conversion Factor: Work:

18. The longest loaf of bread on record was 1256 feet, 2 inches long
The longest loaf of bread on record was 1256 feet, 2 inches long. If this bread had been cut into ½ (0.5) inch slices, how many slices of bread would there have been?

19. There are 115 calories in 4 ounces of baked potato
There are 115 calories in 4 ounces of baked potato. How many pounds of baked potatoes would a person have to eat in order to take in calories?

20. At sea level, water boils at 212 degrees Fahrenheit. At the top of Mt
At sea level, water boils at 212 degrees Fahrenheit. At the top of Mt. Everest, feet, water boils at degrees F. How many degrees does the boiling point drop for every mile up from sea level to the top of Mt. Everest: (hint: change feet to miles. Find the difference of temperatures).