Geography

?
Hydraulic Action
The sheer force of flowing water washes away any loose material on the bed and banks.
1 of 46
Erosion
The wearing away of land.
2 of 46
Abrasion (aka. corrasion)
Stones carried in the river are washed into the bed and banks, wearing them away.
3 of 46
Solution (aka. Corrosion)
The slightly acidic river water dissolves rocks made of calcium carbonate.
4 of 46
Attrition
Stones collide together and are broken down becoming smaller and rounder.
5 of 46
Traction
Stones are rolled along the river bed by the force of flowing water.
6 of 46
Saltation
Small stones are bounced along the river bed by flowing water.
7 of 46
Suspension
Particles of silt and clay float and are carried along in the flowing water.
8 of 46
Solution
Some minerals dissolve in water. Limestone for example slowly dissolves.
9 of 46
Drainage Basin
An area of land drained by a river and its tributaries.
10 of 46
Meander
Is a curve in a river formed by sideways (lateral) erosion.
11 of 46
Hard Engineering
Uses machinery or defenses constructed by people to control natural processes.
12 of 46
Soft engineering.
Works with the environment to control natural processes.
13 of 46
The greenhouse effect
The natural process by which the atmosphere traps heat from the sun.
14 of 46
Global Warming
Describes and explains the pattern of increasing global temperatures.
15 of 46
Lava Flow
Molten rock flowing down the sides of a volcano. Hot basaltic lava from shield volcanoes flows quickly.
16 of 46
Lahars
Mudflows, a mixture of ash and water from melted snow and ice, travel at great speed down the mountain, making evacuation difficult
17 of 46
Dust and ash clouds
Ash thrown high into the atmosphere shuts out the sun and when it settles, can completely bury buildings and crops.
18 of 46
Lava bombs
Large pieces of rock and ash are thrown into the air.
19 of 46
Pyroclastic Flow
Burning clouds of gas and ash, with temperatures up to 1000.C, rush down the mountain, scorching everything in their path.
20 of 46
Focus
The source of the shock wave of an earthquake.
21 of 46
Primary impacts.
These are the immediate consequences of the event. (eg. a mudflow or tsunami)
22 of 46
Secondary impacts
These are the consequences which result from the primary impacts (eg. buildings collapsing lead to people being homeless) Secondary effects can last years.
23 of 46
Seisometers
Measure the increase in earthquake activity that occurs before a volcanic eruption.
24 of 46
Population density
The number of people living in a square kilometre.
25 of 46
Birth rate
The number of live births per 1000 people per year.
26 of 46
Death rate
The number of deaths per 1000 people per year.
27 of 46
Fertility
The average number of children in a family.
28 of 46
Globalisation
When human activities take place on a worldwide scale, meaning we increasingly live in a 'global village'.
29 of 46
Interdependence
When countries are linked together economically, socially, culturally and politically
30 of 46
Trading bloc
A group of countries that work together to remove barriers and improve trade between member countries.
31 of 46
Imports
Goods purchased from abroad and brought into a country.
32 of 46
Exports
Goods purchased by other countries and sent to them.
33 of 46
Tariffs
Taxes imposed on imports.
34 of 46
Quotas
Limits on the amount of goods imported.
35 of 46
Subsidies
Grants of money given by governments to maintain the price of a specific product (eg. milk)
36 of 46
MDG Goal 1
Eradicate extreme poverty and hunger.
37 of 46
MDG Goal 2
Achieve universal primary education.
38 of 46
Millennium Development Goals (MDG's)
Goals set in 2000 by the United Nations to promote human development.
39 of 46
MDG Goal 3
Promote gender equality.
40 of 46
MDG Goal 4
Reduce child mortality
41 of 46
MDG Goal 5
Improve maternal health.
42 of 46
MDG Goal 6
Combat HIV/AIDS, malaria and other diseases.
43 of 46
MDG Goal 7
Ensure environmental sustainability.
44 of 46
MDG Goal 8
Develop a global partnership for development.
45 of 46
The Human Development Index (HDI)
Uses life expectancy, literacy, years in education and income per person to measure development on a scale of 1 to 10.
46 of 46

Other cards in this set

Card 2

Front

The wearing away of land.

Back

Erosion

Card 3

Front

Stones carried in the river are washed into the bed and banks, wearing them away.

Back

Preview of the back of card 3

Card 4

Front

The slightly acidic river water dissolves rocks made of calcium carbonate.

Back

Preview of the back of card 4

Card 5

Front

Stones collide together and are broken down becoming smaller and rounder.

Back

Preview of the back of card 5
View more cards

Comments

No comments have yet been made

Similar Geography resources:

See all Geography resources »See all Water and rivers resources »