Procedures: NO CELL PHONES AT ANY TIME FOR ANY REASON!!! Be in your seat BEFORE the bell rings....
-
Upload
timothy-sparks -
Category
Documents
-
view
216 -
download
0
Transcript of Procedures: NO CELL PHONES AT ANY TIME FOR ANY REASON!!! Be in your seat BEFORE the bell rings....
Procedures:•NO CELL PHONES AT ANY TIME FOR ANY REASON!!!•Be in your seat BEFORE the bell rings.•Bookbags on the floor, NOT on the desk.•Water in screw-top bottles allowed–all other food and beverages are prohibited (safety issue).•You may only use your personal bathroom passes to go to the restroom at the end of the 300 Hall. If you are gone longer than 15 minutes, you will be written up for skipping class.•Check the class website frequently for homework and classwork assignments and for printouts of the notes.•If you do not have the notes already printed out and in front of you, you MUST take notes during note time.
Tests (35%):•Tests are announced 1 week ahead of time so students that are absent the day before the test will be expected to take the test upon their return.•Maximum score on a test retake is 70%•I accept test corrections (max score of 80%) provided the test correction guidelines are followed.
Quizzes (20%): There are no quiz retakes
Homework (10%): •Most will be graded for completion only•Stamp sheets are collected on Fridays (usually) and are the ONLY record of the homework that you’ve done•No late homework will be accepted
Labs (25%):•Work with your assigned lab partners and in your assigned lab groups.•Students engaged in off-task, disruptive or dangerous behaviors during lab will receive a zero for the lab.
Failure to follow lab rules will result in the cessation of ALL LAB activities for the entire class
so POLICE YOURSELVES!! Can we talk about science
now??
While reading a textbook of chemistry I came upon the
statement, "nitric acid acts upon copper." I was getting tired of
reading such absurd stuff and I was determined to see what
this meant. Copper was more or less familiar to me, for copper
cents were then in use. I had seen a bottle marked nitric acid
on a table in the doctor's office where I was then "doing time." I
did not know its peculiarities, but the spirit of adventure was
upon me. Having nitric acid and copper, I had only to learn
what the words "act upon" meant. The statement "nitric acid
acts upon copper" would be more than mere words.
Obj. 1.01
All was still. In the interest of knowledge I was even willing to
sacrifice one of the few copper cents then in my possession. I
put one of them on the table, opened the bottle marked nitric
acid, poured some of the liquid on the copper and prepared to
make an observation. But what was this wonderful thing which
I beheld? The cent was already changed and it was no small
change either. A green-blue liquid foamed and fumed over the
cent and over the table. The air in the neighborhood of the
performance became colored dark red. A great colored cloud
arose. This was disagreeable and suffocating. How should I
stop this?
Obj. 1.01
I tried to get rid of the objectionable mess by picking it up and
throwing it out of the window. I learned another fact. Nitric acid
not only acts upon copper, but it acts upon fingers. The pain
led to another unpremeditated experiment. I drew my fingers
across my trousers and another fact was discovered. Nitric
acid acts upon trousers. Taking everything into consideration,
that was the most impressive experiment and relatively
probably the most costly experiment I have ever performed...
It was a revelation to me. It resulted in a desire on my part to
learn more about that remarkable kind of action. Plainly, the
only way to learn about it was to see its results, to experiment,
to work in a laboratory.
- Ira Remsen ~ 1910
Obj. 1.01
Super Science Safety SystemFailure to follow safety rules will result in a zero for the lab!!!
• Report ALL accidents to the teacher IMMEDIATELY.• Follow all written and verbal instructions carefully.• No unauthorized experiments.• No horseplay!!!• Do not enter lab storage areas or open storage cabinets.• Keep hair and clothing out of the way – tie back long hair, roll up long
sleeves, remove ties, coats and bulky sweaters.• Never taste or touch chemicals unless specifically instructed to do so.• Waft fumes to note odors.• Wear goggles whenever a flame is present, when handling chemicals and
when working with potential projectiles.• Never handle broken glass with your bare hands.• Do not discard any solids in the lab sinks.• Wash hands thoroughly with soap and water at the conclusion of each lab.• USE COMMON SENSE!
Obj. 1.03
Why use the metric system?
3 tsps = 1 Tbsp 16 Tbsp = 1 cup 2 cups = 1 pint 8 pints = 1 gallon
Volume measurements using the English system:
Volume measurements using the metric system:
How many milliliters are in 1 liter?
How many teaspoons are there in 1 gallon?1 gallon = 8 pints = 16 cups
16 cups = 256 Tbsp = 768 tsp
There are 768 tsp in one gallon
1000 mL
Obj. 1.01
k h D b d c m
To:
Put the decimal point to the right of the corresponding prefix.
Fill in the blocks with the starting number.
‘Walk’ the decimal point to the right of the ending prefix.
Fill in zeros as necessary.
8 kg ___________ g
8 0 0 0
Ending number
There are 8000 g in 8 kg
Convert:
Starting number
Obj. 1.01
k h D b d c m
Convert: To:
Put the decimal point to the right of the corresponding prefix.
Fill in the blocks with the starting number.
‘Walk’ the decimal point to the right of the ending prefix.
Fill in zeros as necessary.
18.5 mL ___________ kL
10 00
Starting number Ending number
There are 0.0000185 kL in 18.5 mL
8 500
Obj. 1.01
For larger metric conversions:
M10
5
104 k h D b d c m 10-4 10-5
Mighty King Henry Died by drinking chocolate milk Monday.
Convert 10 m to Mm:
1 00 0 0 00000000
= 1.0 x 10-11 Mm
Note on scientific notation -- if you have to move the decimal point to the: Note on scientific notation -- if you have to move the decimal point to the:
Obj. 1.01
SI Units* – Used in the modern form of the metric system.– Based on the mks system (meter-kilogram-second).– All derived SI units are combinations of the 7 mutually independent base units (below).
*From the French, Le Système International d'unités
NAME SYMBOL QUANTITY
meter m length
kilogram kg Mass
second s Time
ampere A Electric current
kelvin K Temperature
mole mol Amount of a substance
candela cd Luminous intensity
Obj. 1.01