Free Geography Lesson Note SS 2

This Free Geography Note SS 2 Lesson Note was pulled from our book (Lesson Note on Free Geography Lesson Note SS 2 MS-WORD); Compiled to serve as reference material to help teachers draw out their lesson plan easier, saving you valuable time to focus on the core job of teaching.

The Lesson notes are based on the current NERDC curriculum (UBE compliant)

This Free Geography SS 2 Lesson Note Covers The Following Topics

The action of running water
Action of Wind
Action of Glaciers
Action of waves
Climate
Types of Climate
Environmental Resources
Renewable and Non Renewable Resources
Environmental Problems
Agriculture
Transportation in Nigeria
Manufacturing Industries
Manufacturing Industries
Measurements of direction and bearing
Representation of relief
The contour representation of landforms
world population
Problems of rapid population growth
Types of settlement
Settlement

Sample note

Week 1

Topic: Action of running water

Content

Factors affecting the velocity of rivers
Process of river erosion
Processes of River Transportation
Importance of rivers to man

Running water is one of the most important agents of denudation. Rivers involve erosion, transportation, and deposition of minerals.

Factors affecting the Velocity of a River

The higher the volume of water released by a river, the higher the velocity, however as the volume decreases during the dry period, the velocity also decreases
The steeper the slope, the higher the velocity of water in the river
A river uses more energy to flow through a flat–wide valley than through a narrow–deep valley because the former has a large surface area
The greater the speed of the river, the greater the materials or loads it can carry or move

Processes of River Erosion

The erosive work of a river consists of four interacting processes which are:

Hydraulic action process is the fast-flowing water forces itself into cracks and cavities within the valley under pressure and enlarges the crack
Corrosion is the wearing away of the sides and floor of the river valley with the aid of sand, pebbles, silts, and boulders which are being transported. These materials eventually widen and deepen the river valley
Attrition is the wearing down of the load as they collide with one another and with the floor and sides of the valley. Large boulders are broken down into small pieces like pebbles
Solution refers to the chemical action of water on materials it comes in contact with while flowing, rock salts are dissolved and carried away in solution

Processes of River transportation

The load of a river is carried or transported along four main processes, these are:

Solution: Some rock materials dissolve in water and there are carried in a solution from the upper to lower course of river
Suspension: The lighter particles of solid materials are carried in suspension as th water flows
Saltation: In this process, larger particles are moved in series of hops or jumps along he stream bed
Traction: In this process, very large fragments of materials are rolled or pushed along in the river

Delta

Delta is a fan shaped alluvial plain formed as a result of deposition of the fine materials by a river as it reaches or enters the sea or ocean.

Importance of Delta to man

Delta provides good agricultural land especially for the cultivation of rice, oil palms, and raffia palm e.g River Niger
Delta is also good for fishing
Delta is equally good for petroleum mining

Types of Delta

Arcuate delta: These consist of both coarse and fine sediments and have the shape of an inverted cone. It is crossed by many distributors. An example is found in Niger
Bird’s foot delta: This delta consists of very fine materials called silt with several main distributaries like the foot of a bird extending into a sea. An example is the Mississippi delta
Estuarine delta: This delta is formed when it is partially submerged in coastal waters and there is a direct flow of water into the sea with little or no sediments. Example is Amazon

Importance of Rivers to man