1. Drill! Drill! Drill!
1 – Name two different things that a chemistry lab neophyte might do their first time in the lab.
2 – Name 5 different things that a chemistry lab veteran might do when they are in the lab.
Do this drill on the same piece of paper as your previous drill.

2. A Math day
Math is fun!

3. The Metric System Base Units
Quantity
Unit
Unit symbol
Length
Meter m
Mass
Gram g
Time
Second s
Amount
Mole
mol
Electric current
Ampere A
Luminous intensity
Candela cd

4. All the > 1 Prefixes Prefix Symbol Magnitude
Meaning (Multiply base unit by)
yotta Y
1024
zetta Z
1021
exa E
1018
peta P
1015
tera T
1012
giga G
109
mega M
106
kilo k
103
1 000
hecto h
102
100
deka da 10
nothing
no prefix means just the unit!

5. The > 1 prefixes we’ll actually use
Symbol
Magnitude
Meaning (Multiply base unit by this #)
giga G
109
mega M
106
kilo k
103
1 000
That’s it! You’re welcome!

6. All the < 1 Prefixes Prefix Symbol Magnitude
Meaning (Multiply base unit by)
nothing
No prefix = just the unit ****
deci d
10-1
0.1
centi c
10-2
0.01
milli m
10-3
0.001
micro μ
10-6
nano n
10-9
pico p
10-12
femto f
10-15
atto a
10-18
zepto z
10-21
yocto y
10-24

7. The < 1 prefixes we’ll actually use
Symbol
Meaning
Multiply base unit by
deci d
10-1
0.1
centi c
10-2
0.01
milli m
10-3
0.001
micro μ
10-6
nano n
10-9
pico p
10-12

8. A few tricks of the trade before we start today’s activity
For the >1 prefixes  from big to small, each prefix is 1,000 times bigger than the previous one.
For the <1 prefixes  starting after milli-, each prefix is 1,000 times smaller than the previous one (also going from big to small).

9. A mnemonic for the >1 prefixes:
Good morning kids! Nothing!
Giga > mega > kilo > no unit
Part 1 of your homework is to think of a different, better mnemonic.

10. A mnemonic for the <1 prefixes:
No! Does camp make men not phat?
No unit > deci- > centi- > milli- > micro- > nano > pico
Part 2 of your homework tonight: Yup, you each have to think of a better mnemonic than me for this one too.

11. Good mnemonics: Are Funny Or really dumb Somewhat logical
Can’t have extra words
The individual that makes one up benefits the most from it

12. What are we actually doing today?
Pull out your answers to last week’s lab stations.
Some of your measurements were made in pure units with no prefixes (seconds & grams).
Some of your measurements were made in units with prefixes (mL).
Ignore temperature measurements for this activity.

13. You are all shrinking…

14. Using my special teacher powers I have shrunk you all to the size of Escherichia Coli bacteria, about 1 μm.

15. If you want to return to your normal human size, you must do this:
8 minutes:
Convert each of your mass, time and volume measurements to μg, μs and μL.
Start with the measurements where you had no prefixes (do mL conversions last).
How? For now, you can just move the decimal point. Soon we’ll learn another way.

16. Good job, you’re getting bigger

17. Oops! Too big! You are now as big as the state of Texas, about 1 Mm
8 minutes:
Convert each of your mass, time and volume measurements to Mg, Ms and ML.
Start with the measurements where you had no prefixes (do mL conversions last).

18. You can return to your human size again, if you do some homework:
Due tomorrow:
Make 19 measurements (metric) at home.
Can’t have more than 5 of the same type (no more than 5 masses, volumes, distance & time measurements).
Convert masses, volumes & times to bigger and smaller unit of your choice.

19. Notebook Check this Friday:
I will be looking for 4 sections:
Notes
Homework
Handouts
Projects & Labs
Papers should be in the right location
Notes should be dated
Any work turned in should have
Desk #
Date
Name
Class & period