geology
What was it like to be there? -- clues in sediment which bring an environment to life (PDF)
The Tectonic Challenge (PDF)
Alaska Tsunami Education Program (ATEP)
Modelling Earth stresses with your hands (PDF)
The toilet roll of time (PDF)
Slip, Slide, & collide: Divergent Plate Boundaries
Slip, Slide, & Collide: Convergent Plate Boundaries
Interactives: Dynamic Earth Game
Explore Iowa Geology
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