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What Stories Do Rocks Tell?
Keycode: ES2903


How Do Trees Record Time?
Keycode: ES2905


How Did the Layers of the Grand Canyon Form?
Keycode: ES2906

Unit Investigations


What Caused the Mass Extinction Recorded at the K-T Boundary?
Keycode: ESU801



Observe how fossils can form.
Keycode: ES2901


Observe an animation showing the formation of an unconformity.
Keycode: ES2902

Data Centers


Learn more about current methods of scientific dating.
Keycode: ES2904


Find out more about dendrochronology.
Keycode: ES2907



Careers for all chapters

Local Resources


Local Resources for Unit 8

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