16 April 2011 Earth Science Sites of the Week

Editor’s Picks: 1) Crater Impact Calculator, 2) Tsunami Videos, 3) Sky Map, 4) Space Animations and Java Applets, **5) Animation of Nuclear Explosions from 1945-1998, ***6) AAAS Project 2061 Science [Misconception] Assessment Website.

Geosphere

Site Name
When the Earth Mantle Finds its Core
Site URL
Site Author
ESRF
Suggested by
Heather Renyck
Description
“New evidence to support our Earth's interior inferences.” “The Earth's mantle and its core mix at a distance of 2900 km under our feet in a mysterious zone. A team of geophysicists has just verified that the partial fusion of the mantle is possible in this area when the temperature reaches 4200 kelvins. This reinforces the hypothesis of the presence of a deep magma ocean.”



Site Name
GPSVisualizer
Site URL
Site Author
Adam Schneider
Suggested by
Unknown
Description
“This website automatically creates topographic profiles using only two points on a map.  Under the entry area "Or draw a cross-section between two points: " enter two points latitude / longitude (in decimal degrees) and click "Draw the profile".  Magically a graphical profile appears!”



Site Name
Topographic Map Symbols
Site URL
Site Author
USGS
Suggested by
Mark Francek
Description
Use this four page booklet to decipher all topographic map symbols, even the difference between an above and below ground pipeline.


Hydrosphere

Site Name
Great Lakes Water Temperatures
Site URL
Site Author
Great Lakes Environmental Research Laboratory
Suggested by
Ashton Peyrefette
Description
“This is a good website to check out Great Lake temperatures (and ice coverage in winter.”



Site Name
Tsunami Videos
Site URL
Site Author
You Tube
Suggested by
David Robison and Inez Arrigo
Description
The two Japan tsunami videos, one by University students at ground level, the other, aerial, attest to the unstoppable power of this phenomenon.


Atmosphere

Site Name
MetEd
Site URL
Site Author
UCAR
Suggested by
Bob Dedrick
Description
“Just came across a new module produced by NCAR (National Center for Atmospheric Research) which might be helpful for those in your earthquake units.  This module provides an in-depth analysis of tsunamis.  A nice aspect of this website is that you can view it online or download it (and pull out key animations/diagrams) for later use.  Definitely worth signing up and getting an account.  The site also has some other cool meteorology modules.  I have used the lake effect snow module in the past for its great animations and explanations.”


Space

Site Name
Crater Impact Calculator
Site URL
Site Author
Purdue University
Suggested by
Eric Fermann
Description
“I have long used the crater impact effects program available on line with my upper level class.  I'm not teaching the class this year, but I stumbled across an activity that got me thinking about that web site again, so I looked it up and it's changed A LOT.  It's a LOT more fun now, so I thought I would pass it on to the list.  On this site, you can access the various manifestations of the impact impact calculator and has links to three options. Option 2 is the original and is useful for producing a list of effects from an impact.  Option 1 is the cool, updated version of #2...definitely worth a look. but...
Option 3 is fantastic.  You still need to enter meteor data, but it will produce a Google earth plug-in image to show how big the crater would be if, for example, a meteor were to land on your school.”



Site Name
Sky Map
Site URL
Site Author
WikiSky
Suggested by
Emmanuel Eagelson
Description
“Our on-line system is a detailed sky map. We generate the map automatically using our database with the positions and basic characteristics of space objects.”  This site takes some getting used to but your more able students might not return from a close encounter with this site.   Start by panning in and out with the zoom bar to the upper left.



Site Name
Space Animations and Java Applets
Site URL
Site Author
Educypedia
Suggested by
Pete Saracino
Description
You’ll have to search the many animations found here but you are sure to find several of use. Wander to other subjects for other great interactives.


Environmental

Site Name
Animation of Nuclear Explosions from 1945-1998
Site URL
Site Author
Isao Hashimoto
Suggested by
John Nelson
Description
"This piece of work is a bird's eye view of the history [of above and below ground nuclear testing] by scaling down a month length of time into one second.  The blinking light, sound and the numbers on the world map show when, where and how many experiments each country have conducted.





Teaching

Site Name
AAAS Project 2061 Science [Misconception] Assessment Website
Site URL
Site Author
AAAS
Suggested by
David Smith
Description
Registration required – it’s worth it. “The assessment items on this website are the result of more than a decade of research and development by Project 2061, a long-term science education reform initiative of the American Association for the Advancement of Science.
Here you will find free access to more than 600 items. The items:
  • Are appropriate for middle and early high school students.
  • Test student understanding in the earth, life, physical sciences, and the nature of science.
  • Test for common misconceptions as well as correct ideas.
  • “My Item Bank,” a feature that allows you to select, save, and print items and answer keys.
Intended primarily for teachers, these assessment items and resources will also be useful to education researchers, test developers, and anyone who is interested in the performance of middle and high school students in science.



Site Name
The Power of Anxiety
Site URL
Site Author
Media Tech
Suggested by
Jim Therrell
Description
“Not only can life’s anxieties help us learn; life often reveals anxiety’s upside. Bob Rosen, founder, chairman and CEO of global management consulting and research firm Healthy Companies International, wrote the book Just Enough Anxiety to counter the perception that anxiety is always bad and to help business leaders use anxiety as a success driver. There are many ways “just enough anxiety” can be used to powerful effect by chief learning officers, learning designers and facilitators of learning experiences.”



Computer Tips

Site Name
Finding Dead Links
Site URL
Site Author
Mozilla
Suggested by
Don Duggan Haas
Description
“Dead links often live on at archive.com and other Internet archive sites.  Resurrection is a Firefox add on that allows you to search the various archives when you hit a dead link.  It doesn't always work, but I've been able to find many things I thought were lost in the abyss of cyberspace.”


Demos

Site Name
Climate Change and Sea Level Rise
Suggested by
Kristi Martinez
Description
“This one is pretty simple, but gets across the connection between retreating glaciers in Antarctica and rising sea level. I got this idea from two University of Washington graduate students who came to talk to my classes last year about climate change and their research locally. I set up this demo about 30 minutes before my first class starts and let it go all day.

Set up two clear containers side by side...the ones I use to cart around ungraded lab notebooks are a good size for this demo (about 8 inches deep, 8 inches wide and about 14 inches long).

To prepare the "Antarctic" container: Place two empty 4 inch flower pot containers upside down in larger container. On top of the pots place a block of party ice (I prefer the kind that is originally cubed, but has been thawed and refrozen solid :-)). Then fill the container with water so that the water level is just even with the flower pots and mark with a sharpie the water level and time.

To prepare the "Arctic" container: Place a similar block of party ice in this container and fill with water so that the level similar to that of the "Antarctic" container. Mark the level and time with a sharpie.

In about an hour students should be able to easily see that melting sea ice (already floating) has no impact on rising sea levels, but that water from melting glaciers significantly increases sea levels. I also like to have a brainstorm with students at this point about what impacts melting sea ice in the Arctic may have so as to not minimize this environmental issue.”



Quotes

Quote
"Everything that passes unattempted is always impossible" said by Lord Mhoram to Hile-Mark Troy
Suggested by
Greg R. Flick


Humor

Title
Interesting Class Discussion
Suggested by
David Doe
Description
This conversation took place in one of my morning classes:

Mr. Doe, "It says that all after-school activities, including sports, are canceled for today, January 24th.  There will be no late buses."
Student #1, "What about sports?"
Mr. Doe, "Everything."
Student #2, "Even track?"
Mr. Doe, "Everything."
Student #3, "But we can stay after, right?"
Mr. Doe, "No."

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