Question | Answer |
Land Forms
What is a land form? | A land form is any unique physical irregularity of the earth's surface. |
Natural Features/Landforms | Unique irregularities in the earth's surface that are normal. Eg. valleys,plains,hills,beaches,wetland etc. |
Natural Phenomena | Atmospheric conditions that can be observed and also occur naturally. Eg. clouds,rain,wind,evaporation,snow etc. |
Land form creation
Tectonic Forces. | Leads to the formation of land form by large scale movements in the earth's surface.This causes mountains and valleys to be formed. |
Denudation | Leads to the formation of land by altering the shape of the land. Coastal cliffs and rivers are formed by denudation. |
Deposition | Leads to the formation of land form from the material on the surface of the land.Which can form a delta from the sediment carried down by the river. |
Some land form features. | Island,Peninsula,Cape,Point,Bay,Strait,Beach,Plain,Mountain,Hill,Valley,Swamp,Archipelago,Continent,Ocean,Sea,Lake,Gulf and Isthmus. |
What is air pressure? | Air pressure is the atmosphere that surrounds the earth is a layer of air made up of a mixture of gases.The air is heavy and presses down on the earth. |
Water Cycle | The interchange of water between the atmosphere, the land and the ocean. |
The Distribution Of Water | 97.6%-ocean
1.9%-glaciers
0.5%-ground
0.02%-surface storage
0.0001%-atmosphere |
The Processes within the water cycle | Accumulation
Evaporation
Condensation
Precipitation
Transpiration
Surface runoff
Sub surface runoff |
The Processes in the water cycle | [Input]-condensation and precipitation
[Transfers]-surface runoff,infiltration,through flow and advection.
[Outputs]-transpiration and evaporation
[Storage]-underground,swamps,rivers,lakes,ponds,oceans and seas and glaciers. |
Rivers | A River is a network of channels that carry fresh water from a high point such as a mountain to a low point such as a sea. |
Parts of the river | Source,Stream,Waterfall,Meander,Tributary,Confluence,Floodplain,Estuary,Mouth,Drainage Basin and Water shed |
Transportation of The river | Rivers pick up and carry material as they flow down stream. A river may transport material in four different ways:Solution,Suspension,Saltation and Traction. |
River features | [Upper Course]- Narrow V shaped valleys,Interlocking spurs,Rapids,Waterfalls,Gorges.
[Middle Course]-Meanders,River Cliffs and Slip-off Slopes.
[Lower Course]-Deltas,Leves,Flood plains. |
Natural Hazards | Is any event that could cause injury or death to others. |
Some natural hazards | Hurricanes,Tsunami,Volcanoes,Earthquakes,Flooding etc. |
What is a hurricane? | A hurricane are tropical cyclones that are strong low pressure cells that spend most of their lives over the oceans. |