1. Down to Earth

2. The Restless Planet

3. Earth's Interior

4. The Sea Floor

5. The Birth of a Theory

6. Plate Dynamics

7. Mountain Building

8. Earth's Structures

9. Earthquakes

10. Geologic Time

11. Evolution Through Time

12. Minerals: The Materials of Earth

13. Volcanism

14. Intrusive Igneous Rocks

15. Weathering and Soils

16. Mass Wasting

17. Sedimentary Rocks: The Key to Past Environments

18. Metamorphic Rocks

19. Running Water I: Rivers, Erosion and Deposition

20. Running Water II: Landscape Evolution

21. Groundwater

22. Wind, Dust and Deserts

23. Glaciers

24. Waves, Beaches and Coasts

25. Living With Earth, Part I

26. Living With Earth, Part II

Episode 20. Running Water II: Landscape Evolution

What happens as a river deepens its channel?

What is base level, and what happens to a stream as it approaches base level?

Describe the youthful stage of stream development.

Describe the mature stage of stream development.

Describe the old age stage of stream development and the formation of peneplains.

Discuss the interplay between tectonics and erosion.

Describe the process of stream rejuvenation.

What are stream terraces and how are they formed?

What are incised meanders and how are they formed?

Why do deltas form at the mouths of rivers?

What will it take to keep the Mississippi in its present channel?

How does sediment transport affect attempts to control the flow of the Mississippi?

What is the ultimate fate of any river control project?

Why are the processes which shape the land so poorly understood?

Download the PDF version here