Wednesday, February 25, 2009

IB Topo mapping - shapes of settlements

Have a look at the following website and categorise the settlements shown into different shapes. Use your notes to help you. 



Thursday, February 19, 2009

IGCSE Form 5 Drought research

Your task is to produce a report, no longer than  page which examines drought in a LEDC. The questions you must answer to provide content in your report are as follows:

1.What is drought and are there different types?
2.Find a LEDC that has experienced drought or is currently experiencing drought.  In the country of your choice describe and explain the following:- 
a)When did the drought start and how long has it lasted so far/did it last?
b)What were the causes of the drought? Was it just a lack of rainfall or were other factors involved?
b)What human and physical effects did/has it have/had?
c)How was/how is the problem going to be solved?

Make sure that you include a map and photographs. 

Tuesday, February 17, 2009

Form 4 Homework

Hi everyone

The homework task is to produce a page of research in Word or Publisher which answers the following 2 questions:

1.What is a delta? 
2.Why are deltas important?

Please write your research in your own words and include photographs and maps.  Think about the economic benefits of this river landform to people and societies.  I would prefer it if you could print out the work yourselves rather than emailing it to me. 

Any problems email me!

Sunday, February 8, 2009

Form 4 Spelling and definition test

Hi everyone

Here are the terms that you need to learn for a test this week:

Impermeable

A rock that will not allow water to pass through it

Porous

A rock containing tiny pores that allow water to be stored

Saturation

When all the pores have been filled with water in the ground

Limestone

A type of sedimentary rock

Interception

When vegetation prevents precipitation from reaching ground level

Meander

A river bend

Hydraulic action

Erosion caused by the force of water breaking off pieces of rock

Suspension

A process of transportation in which material is picked up and carried along in the water itself

Igneous

A rock formed by magma cooling within the earth’s crust or by lava cooling on the surface

Infiltration

The point at which water passes into the ground

Sedimentary

A rock that has been laid down in layers

Attrition

Erosion caused when rocks and material bump together in a river and break up into smaller pieces

Wetted perimeter

Where water comes into contact with the river banks and bed

Metamorphic

A rock that has been altered by extremes of heat and pressure

Permeable

A rock that will alow water to pass through it

Discharge

The velocity of the water x its volume at a given point in the river

Delta

An area of silt deposited by a river when it enters a lake or sea

Velocity

The speed of the river

Ox-bow lake

A crescent-shaped lake formed after a river cuts through the neck of a meander

Corrasion

Erosion caused by the rubbing of material carried by rivers

Evapotranspiration

The loss of moisture from vegetation

Saltation

A method of transportation where small particles are ‘bounced’ along the river bed

Interlocking spur

A series of spurs that project alternately from the sides of a V-shaped valley

Corrosion

Erosion caused by acids in rivers dissolving rocks

Weathering

The breaking down of rocks in situ

Deposition

The laying down of material previously transported by a river