1. Major Rivers in the United States Eric Angat Teacher

2. 1.What are the major river systems in the United States? Missouri River Mississippi River Arkansas River Ohio River

3. 2. Where is the river mouth of the major rivers? Missouri River Mississippi River Arkansas River Ohio River Gulf of Mexico A river mouth or stream mouth is a part of a river where it flows into the sea, lake, reservoir or ocean. At the mouth of a river a delta is formed resulting from sediment deposition.

4. http://www.worldatlas.com/webimage/countrys/namerica/usstates/usland.htm

5. http://www.worldatlas.com/webimage/countrys/namerica/us.htm

6. 3. What is the highest point in North Carolina? http://en.wikipedia.org/wiki/File:Peedeerivermap.png Highest Point Mt. Mitchell - 6,684 feet (2,037 m) above sea level http://www.enchantedlearning.com/usa/states/northcarolina/

8. Yadkin–Pee Dee River Basin is the second largest river basin in North Carolina. 4. What is the river that passes through Winston Salem? http://en.wikipedia.org/wiki/Yadkin-pee_dee Cape Fear River basin is the largest river basin in NC

10. 5. A chemical plant in NC leaked great amounts of toxic chemicals in the Yadkin River. What other river would also be poisoned by the toxic chemicals? A.Roanoke river B.Pee-Dee River Toxic chemical spill

11. 6. What are Meanders and Oxbow Lakes?

12. A meander is a bend in a river. An oxbow lake is a U-shaped body of water that forms when a meander is cut- off from the river.

13. 7. Where can you find Freshwater? ( lakes, rivers, streams, pond, groundwater, polar ice caps)

14. http://www.sswm.info/category/concept/water-cycle 0.5% 97% 2.5% aquifers rainfall lakes reservoir rivers

15. A watershed is an area of land where all precipitation that falls on it drains to a river 8. What is a watershed?

16. The land that separates each watershed is called a divide. 9. What is a watershed divide? Divide

17. Watershed Divides

18. Watershed receives water from precipitation. Divide Land between watersheds. Watershed to river River flow downstream. Percolation or infiltration

19. 10. A watershed is: A.Water around a given land area B.A stream that flows into a lake C.A series of streams that connect D.The total land area that drains into a stream or river system

20. 11. What separates watershed? A. divide B. aquifer C. mountain D. river basin

21. An estuary is the channel of a river where it nears the sea, with a mixing of fresh water and salt water happen. There are a lot species that consider the estuary as their habitat. Brackish water Ocean tides causes salt water to rise and mix with freshwater. freshwater

22. 12. Why are estuaries important to the environment? A.Estuaries provide us with ample freshwater. B.Estuaries are nurseries and habitat for many species.

23. 13. What is the difference between a lake and a reservoir? A.a lake is man made while a reservoir(dam) was formed by glaciation. B. A reservoir(dam) is man made while a lake was formed by glaciation.

24. 14. How are watersheds and rivers polluted? Watersheds and rivers are polluted by non- point source pollution.

25. Riparian buffers are important for good water quality. Non-point source pollution is removed from runoff by plants before reaching the river or stream

26. Riparian buffers are important for good water quality. Riparian zones help to prevent sediment and pollutants from reaching a stream. Riparian buffers include a native grass or herbaceous filter strip along with deep rooted trees and shrubs along the stream. River NO riparian buffer Corn farm Runoff with sediments and excess fertilizers. Sediments and pollutants pollutes the river or stream.

27. 15. A riparian buffer is an area of vegetation found near a stream. What benefit could this provide in an agricultural area? A.prevent erosion of loose soil from crops B.reduce non-point source pollution of surface water