This document discusses freshwater sources on Earth's surface. It covers streams, including how runoff enters streams, types of streams like meandering and braided streams, and how streams shape the land through erosion and deposition. It also discusses drainage basins, and how flooding can be caused by heavy rain or snowmelt that increases stream discharge beyond the capacity of the channel.

2. Chapter 6: Freshwater at Earth’s Surface Table of Contents Section 3: Wetlands Section 1: Streams Section 2: Lakes and Reservoirs Section 4: Pollution of Freshwater

13. 1 Streams Local Drainage Basins

14. Local Drainage Basins 1 Streams

15. Local Drainage Basins 1 Streams

17. Local Drainage Basins 1 Streams

18. Drainage Basins So where do we drain you ask?

20. 1 Streams

21. 1 Eastern Continental Divide

28. Video

42. Question 1 Section Check 1 Question 1 What three factors determine how much water runs off into stream channels? NC: 3.02

43. Question 2 1 Section Check Question 2 Which type of stream is shown here? NC: 3.02

44. Question 3 1 Section Check Question 3 Explain how new land can be created by streams. NC: 3.02

45. Answer 1 Section Check 1 Question 1 What three factors determine how much water runs off into stream channels? Answer The slope of the land, amount of vegetation on the land, and how much rain falls on the surface determines how much runoff there will be. NC: 3.02

46. Answer 2 1 Section Check A. braided stream B. meandering stream C. straight stream D. wide stream NC: 3.02

47. 1 Section Check Answer The answer is B. Streams that have channels with many curves are called meandering streams. NC: 3.02

48. Answer 3 1 Section Check Answer When a stream empties into a lake, sediment is deposited and a delta forms. The deposited sediment eventually raises the bottom of the water body and the stream forms new channels. The delta continues to grow and new land is created. NC: 3.02