Thursday, January 29, 2009
In Science, we are discussing glaciers and the erosion that occurs by "glacial plucking". Ultimately, this is what happens when glaciers freeze around rocks, boulders, or other sediments as they slowly move along.
How do you represent this visually?
Ivory Soap with Hot-Glued "Boulders"=Glacial Plucking
As the glacier "slides along the hillside" (down our playdough mountain), the boulders that have been frozen in leaves behind "scars" or "striations" in the rock (the playdough).
The kids liked it. :) And I got to play with my favorite toy--the glue gun.
Tuesday, January 27, 2009
Thursday, January 8, 2009
We did an activity yesterday to show the relationship between landforms and topographic maps. Ultimately, the kids used a 3D model and then had to map it onto a 2D surface (transparency). The work with the exacto knife paid off! I named mine "Blueberry Hill". :)