1. The Metric System

2. What is the Metric System
The standard measurement system for science
All sciences use the metric system (including this class)
Conversions will be a necessary skill not only for this class, but for chemistry and physics
This system is much easier to use than the English Imperial System

3. Common SI Units Measurement Unit Abbreviation Length Meter m
Mass Kilogram kg
Time Second s
Temperature Kelvin K
Electric current ampere A
Volume liter L

4. Prefixes for LARGE Measurements
Prefix Symbol Meaning Mult. Of Base Power
Deca da ten
Hecto- h hundred
Kilo k thousand 1,
Mega M million 1,000,
Giga G billion 1,000,000,

5. Prefixes for small Measurements
Prefix Symbol Meaning Mult. Of Base Power
Deci d tenth
Centi c hundredth
Milli m thousandth
Micro u millionth
Nano n billionth

6. Conversion Steps
1. Rewrite given number, write in decimal (if not present)
2. Find the beginning and ending units on your conversion chart
3. Count how many times you ‘jump’/ Which way do you move?
4. Draw in jumps from beginning decimal/ Draw a new decimal and cross out the beginning decimal
5. Add zeros in the jumps
6. Write your final answer with the new unit

7. Examples 1. 1.85m = ___________cm 2. 3.5 km = ___________cm
km = ___________ mm
m = ___________ km
cm = ___________km

8. More Practice 1. 0.55km = ___________mm 2. 1,549 cm = __________m
,543 um = ___________cm
cm =_______________um

9. Exit Tickets #13-16

10. 13. What is a unit used to measure volume?
a. meters (m)
b. grams (g)
c. liters (L)
d. g/cm3

11. 14. What is a unit used to measure mass?
a. meters (m)
b. grams (g)
c. liters (L)
d. g/cm3

12. 15. What is a unit used to measure density?
a. meters (m)
b. grams (g)
c. liters (L)
d. g/cm3

13. 16. Which of these pieces of equipment is used to measure the volume of a liquid?
a. graduated cylinder
b. electronic scale
c. test tube
d. meter stick

14. Exit Ticket #17-20

15. 17. How many cm are in 1 m?
a.10
b. 100
c. 1,000
d. 10,000

16. 18. How many mm are in 1 cm?
a. 10
b. 100
c. 1,000
d. 10,000

17. km = ______ m?
724.6
7246

18. mg = _______ kg?
.00812