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

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

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

Find out more about dendrochronology.
Keycode: ES2907

Careers for all chapters

Local Resources for Unit 8