|
your
name______________________________________________
To get
to this page on the Internet:
- Go to the Cabrillo
College Library homepage <http://libwww.cabrillo.edu>
- Click on Internet
Links
- Click on Chemistry,
then on Course-Related Materials
- Click on CHEM
1B
Before you begin:
If you are using Netscape or Mozilla, bookmark this Web page (Bookmarks
-> Add Bookmark). Then, whenever you want to return to this Web page,
just go to your Bookmarks! (If you are using Internet Explorer, add
this page to your Favorites file.)
C4 -- Computers
in Chemistry at Cabrillo College
| A
browser plug-in called Chime makes it possible to view and
learn about molecular structures in a variety of ways. A tutorial
about how to use Chime is posted to the Cabrillo College Chemistry
Department Web site. In the first part of this worksheet, you are
going to explore how to use Chime. |
1. Go to the
Computers in Chemistry at Cabrillo College Web page which is
at http://c4.cabrillo.edu
2. Click
on A Chime Tutorial, then Begin the Chime Tutorial
2. Spend about 20
to 30 minutes working through the tutorial.
3. After you have been through the tutorial
Go back to the
C4: Computers in Chemistry
at Cabrillo College Web page
Scroll down and click on Molecular Playground
4. Bring up full-page
models for 3 of the molecules by clicking on the links below their pictures.
Apply what you learned in the Chime tutorial to examine and study the
three molecules you select. Briefly summarize what you have learned.
Name of molecule:_______________________
What I learned________________________________________________
___________________________________________________________
___________________________________________________________
Name of molecule:_______________________
What I learned________________________________________________
___________________________________________________________
___________________________________________________________
Name of molecule:_______________________
What I learned_________________________________________________
____________________________________________________________
____________________________________________________________
Periodical Articles: Using EBSCOhost's
Academic Search Elite
Academic Search Elite provides access to information about
articles published in approximately 3,470 periodicals; for about 2,050
of those periodicals, fulltext copies of the articles are in the database.
1. Here's what
you do:
- Go
to the Cabrillo College Library homepage
<http://libwww.cabrillo.edu>
- Click
on Fulltext Articles [If you are coming in from
off campus, your user ID is your library card number]
- On
the next screen, click on Magazine & Journal Articles
(EBSCOhost)
- On
the next screen, click on
- On
the next screen, click on Advanced Search
button
- On
the next screen, click in the small boxes next to Full
Text (this means you'll retrieve articles that are full
text in the database)
- Type
in your search terms. Then click on the Search
button.
|
3. Search for information
about either of these topics (check the one you use):
___anandamide
___ephedrine
How many full text
articles did you retrieve? _______ (Did you remember to
click in the box next to Full Text? If not, go back and do the
search again.)
4. Bring up one
of the full text articles. Go through the motions of emailing a copy
to yourself. If you don't have an email account, you can email your
article to your chemistry instructor. Dale Scoggin's email address is
dascoggi@cabrillo.edu. Ask for assistance if you don't know how
to email an article. [Don't have an email account yet?! Go to Getting
an Email Account and find out how you, too, can join the 21st Century!]
Internet
Resources for Chemistry
There are some excellent Web sites that bring together a large number
of Internet links for chemistry. Listed below are several of these.
Select two and explore them for their information about organic
chemistry. Make notes about the kinds of resources provided:
Chemistry.org
Chemdex.org
ChemFinder.com
Name of Web site:
______________________
Your notes_________________________________________________________________
__________________________________________________________________________
__________________________________________________________________________
Name of Web site:
______________________
Your notes________________________________________________________________
_________________________________________________________________________
_________________________________________________________________________
Other
good Web resources for chemistry are listed on the Cabrillo College
Chemistry Department
Web site (click on Additional Links).
Looking for Information on Your Own
Sometimes, you want to explore whether there are quality Internet resources
on a quite specific topic. To do that, you use a search engine.
Search engines are tools that provide indexing of Internet resources.
Each operates a bit differently from the others. It is helpful
to have some knowledge of how to use them to advantage. Explore
Search
Engines: How Well Do they Cover the Internet? to see why you need
to know how to use more than one of them. Subject
Directories & Search Engines will explain why you often don't
find much that's helpful when you're using Yahoo! (which is not a search
engine). For those confused by Boolean search logic, here's
help! -- What's Boolean
Logic? And check out the Detailed
Search Engine Chart.
How do you get
to a list of Search Engines with information about how to use them?
- From the
Cabrillo College Library homepage
- Click on Search
the Internet
- Click on
Search Engines
Suppose you were
researching methyl tertiary butyl ether (MTBE) and its association with
environmental contamination.
In all of the search
engines, you use quotation marks (" ") to keep words in phrases
together, so the search statement could be:
MTBE
"environmental contamination"
|
The difference in the number of results, and in their ranking
(i.e., which Web sites are on top of the results lists) comes
from the fact that 1) search engines index the Web on different
time schedules; 2) search engines differ from one another as to
how they index a page (e.g., which words they select);
3) search engines use different algorithms to rank search results.
While Google
and Yahoo! search are general search engines, Teoma concentrates
on providing helpful groupings of Web sites by subject-specific
areas. After you get a results list in Teoma, look at Refine
and Resources (over on the right). Here you'll
find suggested Web sites that should help you refine your search,
and links to more expert materials.
Your turn!
Search for Internet resources on the subjects listed below. Attach
additional sheets of paper as needed.
1. Methyl
tertiary butyl ether (MTBE):
- What
is the formula of the chemical compound represented by the letters
MTBE (methyl tertiary butyl ether)?
- Draw
the chemical structural formula represented by MTBE
- What
is the primary use of MTBE in today's society?
- What
advantages have been reported for the use of MTBE?
- Are
there any studies/research to suggest any disadvantages to the
use of MTBE?
2. Four different
allotropic states exist for the element carbon: diamond, graphite,
fullerene, soot.
- What
is the formula for the allotrope fullerene?
- Draw
the chemical structure of fullerene
- What
is the crystal lattice (unit cell) for fullerene?
- Anything
especially interesting about fullerene?
3. Methyl
bromide is an agricultural fumigant widely used in the strawberry
fields in this local area. Search to find at least two papers that
discuss the advantages and/or disadvantages of the use of methyl
bromide. |
Please help us
by filling out this brief evaluation
form. Thanks!!
To get
to this page on the Internet
- Be on the Cabrillo
College Library homepage http://libwww.cabrillo.edu
- Click on Internet
Links
- Click on Chemistry,
then on Course-Related Materials
- Click on CHEM
1B
D. Scoggin; T.
N. Smalley
1/98; last rev. 8/05 |
