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Law of Superposition
In undisturbed rock layers, older layers of rock lie beneath the younger rock layers
Theory of Continental Drift
Theory that all the continents were one continent. The big continent (called Pangaea) slowly moved to apart to the continents' present locations
Theory of plate Tectonics
The earth's lithosphere( land) is broken into big chunks that move and change position over time
When plates move together creating earthquakes or cause the formation of mountains or volcanoes
When their are changes in the chemical composition of rocks. Because of this the rock is weaker and may break and dissolve
Maps that show the location and elevation ( how high or low things are). They tell ou whether areas are steep or level
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