From: Katryn Wiese (kwiese@ccsf.edu)
Date: Tue May 11 2004 - 09:14:53 PDT
Message-Id: <s0a099b2.020@bat-gwmta.ccsf.edu> Date: Tue, 11 May 2004 09:14:53 -0700 From: "Katryn Wiese" <kwiese@ccsf.edu> Subject: Re: Water in Arctic (density)
There's a great video, "Under the Antarctic Ice", that shows the
high-salinity brines formed with the sea ice (as the freshwater converts
to ice, leaving the remaining water pockets much saltier) dropping
through the ice into the water below. This water immediately sinks
through the surrounding water to the bottom, where it spreads out --
simulating the much larger-scale bottom currents of the world's oceans
(aside from Red Sea and Med Sea intermediate waters, the saltiest waters
in the world), which originate in the polar seas from ice formation and
then move down and outward under all the world's oceans. The movie
illustrates the process very well. AND...it shows the interaction
between these supercooled brines (much lower freezing point, so can get
super cold) and the normal cold polar seawater (also lower freezing
point than freshwater, but nowhere near what the brines experience). The
proximity of the supercooled brines causes the seawater to cool below
its freezing point, and frozen tunnels (brine channels) form as the
brines sink through the seawater. Amazing footage!
Katryn Wiese
Department of Earth Sciences
City College of San Francisco
50 Phelan Ave Box S50
San Francisco, CA 94112
415.452.5061
kwiese@ccsf.edu
>>> "Pinhole Listserv" <pinhole@exploratorium.edu> 05/11/04 12:20AM
>>>
Pinhole Digest #1502 - Tuesday, May 11, 2004
Re: pinhole looking for magnetic squish balls--I know I saw them in a
cat
by <PamellaFerris@comcast.net>
Re: pinhole looking for magnetic squish balls--I know I saw them in a
cat
by "Paul Doherty" <pauld@exploratorium.edu>
pH meters
by "Geoff Ruth" <gruth@leadershiphigh.org>
RE: looking for magnetic squish balls--I know I saw them in a
catalog!
by <DonRath@aol.com>
headlands institute
by "Kevin Kinsella" <kkinsella@woodside.k12.ca.us>
salinity of arctic waters
by "Kevin Kinsella" <kkinsella@woodside.k12.ca.us>
RE: pinhole looking for magnetic squish balls--I know I saw them in a
cat
by "Rudge, Georgiana" <Georgiana.Rudge@evc.edu>
Re: pinhole question about physics first
by "Ellen Koivisto" <igneous@earthlink.net>
Re: magnetic squish balls - 05/10/04
by <lkrand@earthlink.net>
Need help on choosing Earth Science Textbook
by "math wizard" <mathbonus@yahoo.com>
----------------------------------------------------------------------
Subject: Re: pinhole looking for magnetic squish balls--I know I saw
them in a catalog!
From: <PamellaFerris@comcast.net>
Date: Mon, 10 May 2004 10:05:14 +0000
Arbor Scientific sells these. Go to their website. www.arborsci.com
> There's a great activity that Paul showed one summer.
> You put a magnet inside an earth squish-ball and then
> sprinkle staples over it. The staples line up with
> the magnetic field. Recently, I saw a science catalog
> that's selling these so you don't have to cut open a
> squish ball. However, my department didn't keep the
> catalog and now I can't find them anywhere. Does
> anyone know which company was selling them? Thank
> you!!
>
> --Debbie
>
>
>
>
> __________________________________
> Do you Yahoo!?
> Win a $20,000 Career Makeover at Yahoo! HotJobs
> http://hotjobs.sweepstakes.yahoo.com/careermakeover
>
>
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> To unsubscribe from pinhole, send an email to
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send an
> email to requests@exploratorium.edu with the words 'subscribe digest
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> Check out what your colleagues have written on Pinhole in the
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> archives at: http://saturn.exploratorium.edu/ti/alumni/pinhole.html
>
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>
>
----------------------------------------------------------------------
Subject: Re: pinhole looking for magnetic squish balls--I know I saw
them in a catalog!
From: "Paul Doherty" <pauld@exploratorium.edu>
Date: Mon, 10 May 2004 09:22:54 -0700
Hi Pamela
The company is Arbor Scientific
www.arborsci.com
Paul D
On Mon, 10 May 2004 10:05:14 +0000
PamellaFerris@comcast.net wrote:
>Arbor Scientific sells these. Go to their website.
> www.arborsci.com
>> There's a great activity that Paul showed one summer.
>> You put a magnet inside an earth squish-ball and then
>> sprinkle staples over it. The staples line up with
>> the magnetic field. Recently, I saw a science catalog
>> that's selling these so you don't have to cut open a
>> squish ball. However, my department didn't keep the
>> catalog and now I can't find them anywhere. Does
>> anyone know which company was selling them? Thank
>> you!!
>>
>> --Debbie
>>
>>
>>
>>
>> __________________________________
>> Do you Yahoo!?
>> Win a $20,000 Career Makeover at Yahoo! HotJobs
>> http://hotjobs.sweepstakes.yahoo.com/careermakeover
>>
>>
---------------------------------------------------------------------------
>>
>> To unsubscribe from pinhole, send an email to
>>requests@exploratorium.edu
>> with the words 'unsubscribe pinhole' (without the
>>quotes) in the SUBJECT
>> of the email.
>>
>> To subscribe to the digest and only get 1 combined
>>message a day, send an
>> email to requests@exploratorium.edu with the words
>>'subscribe digest
>> pinhole' (without the quotes) in the SUBJECT of the
>>email.
>>
>> Check out what your colleagues have written on Pinhole
>>in the Pinhole
>> archives at:
>>http://saturn.exploratorium.edu/ti/alumni/pinhole.html
>>
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>>
>>
>
>---------------------------------------------------------------------------
>
>To unsubscribe from pinhole, send an email to
>requests@exploratorium.edu
>with the words 'unsubscribe pinhole' (without the quotes)
>in the SUBJECT
>of the email.
>
>To subscribe to the digest and only get 1 combined
>message a day, send an
>email to requests@exploratorium.edu with the words
>'subscribe digest
>pinhole' (without the quotes) in the SUBJECT of the
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>Check out what your colleagues have written on Pinhole in
>the Pinhole
>archives at:
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>---------------------------------------------------------------------------
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>
----------------------------------------------------------------------
Subject: pH meters
From: "Geoff Ruth" <gruth@leadershiphigh.org>
Date: Mon, 10 May 2004 10:00:52 -0700
Hi,
I am looking into buying some replacement pH meters for my school.
Does anyone have experience or recommendations about the best type of
pH meters to be used in regular chemistry & AP chemistry high school
classes?
Thanks,
Geoff
----------------------------------------------------------------------
Subject: RE: looking for magnetic squish balls--I know I saw them in a
catalog!
From: <DonRath@aol.com>
Date: Mon, 10 May 2004 13:27:59 EDT
--part1_d8.a1c068b.2dd1159f_boundary
Content-Type: text/plain; charset="US-ASCII"
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Hi Debbie --
Try Arbor Scientific. 1-800-367-6695. www.arborscientific.com. In the
2003
catalog it's called Magnetic Globe -- catalog number P8-1130 -- $11.
Hope this
helps.
Don Rathjen
Exploratorium Teacher Institute
donr@exploratorium.edu
or
donrath@aol.com
--part1_d8.a1c068b.2dd1159f_boundary
Content-Type: text/html; charset="US-ASCII"
Content-Transfer-Encoding: quoted-printable
<HTML><FONT FACE=3Darial,helvetica><HTML><FONT COLOR=3D"#000000"
FACE=3D"Gen=
eva" FAMILY=3D"SANSSERIF" SIZE=3D"2">Hi Debbie -- <BR>
<BR>
Try Arbor Scientific. 1-800-367-6695. www.arborscientific.com. In the
2003 c=
atalog it's called Magnetic Globe -- catalog number P8-1130 -- $11.
Hope thi=
s helps.<BR>
<BR>
Don Rathjen<BR>
Exploratorium Teacher Institute<BR>
donr@exploratorium.edu<BR>
or<BR>
donrath@aol.com<BR>
</FONT><FONT COLOR=3D"#000000" FACE=3D"Geneva" FAMILY=3D"SANSSERIF"
SIZE=3D"=
2"></FONT></HTML>
--part1_d8.a1c068b.2dd1159f_boundary--
----------------------------------------------------------------------
Subject: headlands institute
From: "Kevin Kinsella" <kkinsella@woodside.k12.ca.us>
Date: Mon, 10 May 2004 11:35:18 -0700
Just in case you're looking for a great way to end the year;
THE HEADLANDS INSITUTE has a few openings for the rest of this school
year
until June 10, 2004! If you know of another teacher that might be
interested
in bringing a group of students to a one to five day/four night field
science program this spring please have them contact the Headlands
Institute
Program Director immediately at (415)332-5771 ext.23 or
ltalbot@yni.org.
Full and partial scholarships are available.
Thank you for passing this on.
Please contact:
Laurel Talbot
Field Science Program Director
Headlands Institute
GGNRA Building 1033
Sausalito, CA 94965
415-332-5771 Ext. 23
415-332-5784 Fax
submitted by:
Kevin Kinsella
5th/6th Science Explorer
Woodside School
650.851.1571 x256
----------------------------------------------------------------------
Subject: salinity of arctic waters
From: "Kevin Kinsella" <kkinsella@woodside.k12.ca.us>
Date: Mon, 10 May 2004 11:42:12 -0700
Paul, I thought you might be able to answer this question from our
Earth
Science text, I have my theories, but...
"Would you expect the seawater just below the floating ice in the
Arctic
Ocean to be higher or lower in salinity than the water in the deep
zone
there? Explain."
Would this apply to Antarctic waters as well?
Kevin Kinsella
5th/6th Science Explorer
Woodside School
650.851.1571 x256
----------------------------------------------------------------------
Subject: RE: pinhole looking for magnetic squish balls--I know I saw
them in a catalog!
From: "Rudge, Georgiana" <Georgiana.Rudge@evc.edu>
Date: Mon, 10 May 2004 12:05:25 -0700
Arbor Scientific is where I got mine.
Georgiana
-----Original Message-----
From: Debbie Berlin [mailto:debbie_berlin@yahoo.com]
Sent: Sunday, May 09, 2004 3:02 PM
To: pinhole@exploratorium.edu
Subject: pinhole looking for magnetic squish balls--I know I saw them
in
a catalog!
There's a great activity that Paul showed one summer.
You put a magnet inside an earth squish-ball and then
sprinkle staples over it. The staples line up with
the magnetic field. Recently, I saw a science catalog
that's selling these so you don't have to cut open a
squish ball. However, my department didn't keep the
catalog and now I can't find them anywhere. Does
anyone know which company was selling them? Thank
you!!
--Debbie
__________________________________
Do you Yahoo!?
Win a $20,000 Career Makeover at Yahoo! HotJobs
http://hotjobs.sweepstakes.yahoo.com/careermakeover
------------------------------------------------------------------------
---To unsubscribe from pinhole, send an email to requests@exploratorium.edu with the words 'unsubscribe pinhole' (without the quotes) in the SUBJECT
of the email.
To subscribe to the digest and only get 1 combined message a day, send an email to requests@exploratorium.edu with the words 'subscribe digest pinhole' (without the quotes) in the SUBJECT of the email.
Check out what your colleagues have written on Pinhole in the Pinhole archives at: http://saturn.exploratorium.edu/ti/alumni/pinhole.html ------------------------------------------------------------------------ ---
----------------------------------------------------------------------
Subject: Re: pinhole question about physics first From: "Ellen Koivisto" <igneous@earthlink.net> Date: Mon, 10 May 2004 17:38:57 -0700
My school is considering science sequence changes. If your school does physics in 9th grade, conceptual physics, what happens when you do the CST subject area tests at the end of the year? Are the students' math skills adequate? Do you have to supplement the conceptual physics math with some more traditional, of plug and chug, or drill and kill math work?
Looking for some data, Ellen Koivisto School of the Arts, SF
On Monday, May 10, 2004, at 03:05 AM, PamellaFerris@comcast.net wrote:
> Arbor Scientific sells these. Go to their website. www.arborsci.com
>> There's a great activity that Paul showed one summer. >> You put a magnet inside an earth squish-ball and then >> sprinkle staples over it. The staples line up with >> the magnetic field. Recently, I saw a science catalog >> that's selling these so you don't have to cut open a >> squish ball. However, my department didn't keep the >> catalog and now I can't find them anywhere. Does >> anyone know which company was selling them? Thank >> you!! >> >> --Debbie >> >> >> >> >> __________________________________ >> Do you Yahoo!? >> Win a $20,000 Career Makeover at Yahoo! HotJobs >> http://hotjobs.sweepstakes.yahoo.com/careermakeover >> >> ---------------------------------------------------------------------- >> ----- >> >> To unsubscribe from pinhole, send an email to >> requests@exploratorium.edu >> with the words 'unsubscribe pinhole' (without the quotes) in the >> SUBJECT >> of the email. >> >> To subscribe to the digest and only get 1 combined message a day, >> send an >> email to requests@exploratorium.edu with the words 'subscribe digest >> pinhole' (without the quotes) in the SUBJECT of the email. >> >> Check out what your colleagues have written on Pinhole in the Pinhole >> archives at: http://saturn.exploratorium.edu/ti/alumni/pinhole.html
>> ---------------------------------------------------------------------- >> ----- >> >> > > ----------------------------------------------------------------------- > ---- > > To unsubscribe from pinhole, send an email to > requests@exploratorium.edu > with the words 'unsubscribe pinhole' (without the quotes) in the > SUBJECT > of the email. > > To subscribe to the digest and only get 1 combined message a day, send > an > email to requests@exploratorium.edu with the words 'subscribe digest > pinhole' (without the quotes) in the SUBJECT of the email. > > Check out what your colleagues have written on Pinhole in the Pinhole > archives at: http://saturn.exploratorium.edu/ti/alumni/pinhole.html > ----------------------------------------------------------------------- > ---- > >
----------------------------------------------------------------------
Subject: Re: magnetic squish balls - 05/10/04 From: <lkrand@earthlink.net> Date: Mon, 10 May 2004 17:59:28 -0700 (GMT-07:00)
Arbor Scientific has the magnetic squish balls. Last year's price was $11.
Enjoy, Laura
There's a great activity that Paul showed one summer. You put a magnet inside an earth squish-ball and then sprinkle staples over it. The staples line up with the magnetic field. Recently, I saw a science catalog that's selling these so you don't have to cut open a squish ball. However, my department didn't keep the catalog and now I can't find them anywhere. Does anyone know which company was selling them? Thank you!!
--Debbie
----------------------------------------------------------------------
Subject: Need help on choosing Earth Science Textbook From: "math wizard" <mathbonus@yahoo.com> Date: Mon, 10 May 2004 18:56:18 -0700 (PDT)
--0-1780771129-1084240578=:84330 Content-Type: text/plain; charset=us-ascii
Fellow Pinholer, I teach 9th grade earth science at a private school. I have grown tired of the texbook we use right now. I'd really appreciate any suggestions on a good replacement. Thanks.
Peter
--------------------------------- Do you Yahoo!? Win a $20,000 Career Makeover at Yahoo! HotJobs --0-1780771129-1084240578=:84330 Content-Type: text/html; charset=us-ascii
<DIV>Fellow Pinholer,</DIV> <DIV> I teach 9th grade earth science at a private school. I have grown tired of the texbook we use right now. I'd really appreciate any suggestions on a good replacement. Thanks.</DIV> <DIV> </DIV> <DIV>Peter</DIV><p> <hr size=1><font face=arial size=-1>Do you Yahoo!?<br><a href="http://pa.yahoo.com/*http://us.rd.yahoo.com/hotjobs/hotjobs_mail_signature_footer_textlink/evt=23983/*http://hotjobs.sweepstakes.yahoo.com/careermakeover">Win a $20,000 Career Makeover at Yahoo! HotJobs </a> --0-1780771129-1084240578=:84330--
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