Year 8 Term 1 Flashcards
(39 cards)
What is a map?
A map is a representation or part of the earth surface from above
Define mapwork.
It is an art of drawing plans, sketches, maps and pictures based on measurement
State 3 types of maps
1.Topographical maps
2.Sketch map
3.Atlas map
What is a continent?
It is the earth large continuous landmasses, typically separated by oceans or geographical features.
What is an ocean.
It is a vast body of salt water that covers about 72% of earth surface and it is divided into five main regiona.
State the 7 continents in the world
1.Europe
2.North America
3.South America
4.Asia
5.Australia
6.Africa
7.Antarctica
Name the 5 oceans
1.Pacific
2.Atlantic
3.Artic
4.Indian
5.Southern
What is grid reference?
It is a way of locating places using gris lines and northings and easting
What is a northing?
An imaginary line running from north to south
What is a easting?
An imaginary line running from west to east
what is the equator
The imaginary line in the middle of the earth
State 5 Importances of oceans, seas and rivers
1.Helps the economy
2.Help with travel and trade.
3.Source of salt
4.Helps agriculture
5.Home to marine life
What is a contour?
A contour is a continuous brown line used to show different physical features and man made features
What is earth movement?
The movement of crystal rocks by forces originating in the interior of the earth
State 3 forces that cause earth movement.
1.Tectonic forces
2.Gravity
3.Compressional forces
State the results of earth movement
1.Faulting
3.Vulcanicity
3.Folding
Highlight 3 causes for earth movement.
1.Magma movement
2.Gravity
3.Conventional currents
4.isostatic adjustements
What is folding?
It is the bending of crystal rocks inside the earth due to earths movement
What are 3 features of folding
1.Fold mountains
2.Rift valley
3.Ridges
State 4 significance of folding
1.Results in fold mountains
2.Attracts tourists
3.Source of income
4.Acts as a barrier of transport and communications
What is faulting?
It is the fracturing of crystal rocks externally and internally
3 Features of faulting
1.Escarpments
2.Fault mountains
3.Plains
5 significance of faulting
1.attracts tourists
2.Results in mountains
3.Helps of economy
4.Improves living standards
5.Acts as a barrier of transportation and communication
What is vulcanicity?
It is process through which solid, liquid and gases materials are forced into the earth’s crust or onto the earths surface