Friday, April 18, 2014

Modeling Tectonics

Cracker can be used to model tectonics because the dots are like the faults. They could be put in frosting to model how the crust sits above the mantel and can move.
Materials:
Graham crackers
Frosting
Wax Paper

1. Convergent: cracker over cracker
2. Divergent: down and apart
3. transvergent: slipped

Alfred Wagner-Continental Drift (not strong enough proof), now we know about  convection currents
Three proofs-rock types (fossils), glacial scars, contents fit together
US Navy discovered Mid-Atlantic ridge and polar magnetism

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