The science behind the Gulf Stream was very interesting. I couldn't believe the connections to the convection currents occurring in the athenosphere and the convection cells in our atmosphere. I have been following the chemical changes in the ocean for several years and found the salinity changes to be a big part of my own curriculum when it comes to density and freezing and boiling points. One of the first labs we do is look at how and why a solute can lower a solution's melting point and why the DOT is salting our roads. Its an eye opener for the kids: "But I thought the salt melts the ice?" "Doesn't the salt give the sidewalks some traction so we don't slip?"
For the teacher, it shows an insiders take on doing good science, how facts come together and how hypotheses are formed and tested.
One connection to the people that inhabit those coastal habitats and the changing ocean is the biochemical change I have been following closely for 3-4 years. Ocean Acidification can have huge effects on those people that rely on ocean resources especially shellfish. My students have seen the connection with their everyday uses of acids and bases. Our chemistry unit looks at acids and bases, especially on how to measure and identify. The above website really give the layperson a good resource on how acids can be damaging to the oceans with increased carbon dioxide production. Imagine clams, oysters,and other shell fish not being able to make their protective shells and the damage to those that rely on this resource: Sea mammals to humans.
The module really makes connections between the sun, Earth, its winds, oceans, and the interconnections of a truly living and breathing entity. Is Gaia alive and well in the 21st century?
Google Earth continually amazes me and I am glad for the hands on assignments that "make" me explore the program. I think the add content option to be a great addition to my classroom. The real-time earthquakes KML files are an excellent teaching tool.
The YouTube videos were another matter. ASD has given teachers a little more leeway to access the content from the classroom, but the passwords and hoops you must go through really make it not an easy resource to use.
The discovery videos on the other hand are easy to use, download and manipulate for archiving for next year's lessons.
Cruised to Eric's blog and found a great creation myth shared by both the Maori and Hawaiians.
Next I went to Janet's great site and found links to ocean alive I would love to use in my classroom.
More great resources from Cheryl and the Lake ice studies happening here in Alaska!
Had to share this pic of the Comet flyby. Cool stuff happening every!
|NASA's Deep Impact (EPOXI) probe flew past Comet Hartley 2 only 435 miles from the comet's active nucleus|