Drill! Drill! Drill!

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 gt 1 Prefixes
Prefix Symbol Magnitude Meaning (Multiply base unit by)
yotta Y 1024 1 000 000 000 000 000 000 000 000
zetta Z 1021 1 000 000 000 000 000 000 000
exa E 1018 1 000 000 000 000 000 000
peta P 1015 1 000 000 000 000 000
tera T 1012 1 000 000 000 000
giga G 109 1 000 000 000
mega M 106 1 000 000
kilo k 103 1 000
hecto h 102 100
deka da 10 10
nothing no prefix means just the unit! no prefix means just the unit! no prefix means just the unit!
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The gt 1 prefixes well actually use
Prefix Symbol Magnitude Meaning (Multiply base unit by this )
giga G 109 1 000 000 000
mega M 106 1 000 000
kilo k 103 1 000
Thats it! Youre welcome!
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All the lt 1 Prefixes
Prefix Symbol Magnitude Meaning (Multiply base unit by)
nothing No prefix just the unit No prefix just the unit 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 0.000 001
nano n 10-9 0.000 000 001
pico p 10-12 0.000 000 000 001
femto f 10-15 0.000 000 000 000 001
atto a 10-18 0.000 000 000 000 000 001
zepto z 10-21 0.000 000 000 000 000 000 000 001
yocto y 10-24 0.000 000 000 000 000 000 000 000 001
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The lt 1 prefixes well actually use
Prefix 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 0.000 001
nano n 10-9 0.000 000 001
pico p 10-12 0.000 000 000 001
8
A few tricks of the trade before we start todays
activity

• For the gt1 prefixes ? from big to small, each
  prefix is 1,000 times bigger than the previous
  one.
• For the lt1 prefixes ? starting after milli-, each
  prefix is 1,000 times smaller than the previous
  one (also going from big to small).

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A mnemonic for the gt1 prefixes

• Good morning kids! Nothing!
• Giga gt mega gt kilo gt no unit
• Part 1 of your homework is to think of a
  different, better mnemonic.

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A mnemonic for the lt1 prefixes

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

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Good mnemonics

• Are Funny
• Or really dumb
• Somewhat logical
• Cant have extra words
• The individual that makes one up benefits the
  most from it

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What are we actually doing today?

• Pull out your answers to last weeks 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.

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You are all shrinking
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Using my special teacher powers I have shrunk you
all to the size of Escherichia Coli bacteria,
about 1 µm.
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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 well learn another way.

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Good job, youre getting bigger
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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).

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You can return to your human size again, if you
do some homework

• Due tomorrow
• Make 19 measurements (metric) at home.
• Cant 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