I wore this pair of copper earrings last summer using copper wire, pliers, a hammer, and a anvil.
The two earrings were very similar--each a two-dimensional spiral. But I grabbed the center of one pair with my pliers and pulled it, creating a 3-D spiral.
I love this simple transformation from 2-D to 3-D. It's the sort of transformation that is possible because of copper's properties: it's malleable, ductile, and soft. It can be polished until it shines, and it glows a lovely color. Because of these properties, humans have used copper since prehistoric times.
Today in Social Studies I set up stations at which my students wrote observations and inferences about a variety of Indian artifacts--both authentic objects and recreations-- arrowheads; bowls made of gourds, clay, and a turtle shell; handmade rope; a pestle; bone beads; and both raw copper and copper amulets.