Topic Summaries
Layers of the Earth
Natural and tectonic hazards
Earth layers and earthquakes
Tectonic plate margins
Responses to tectonic hazards
Risks of tectonic hazards
Weather hazards and atmospheric circulation
Tropical storm hazards
Responding to tropical storms
Climate change
Components and characteristics of ecosystems
Tropical rainforest ecosystems
Hot desert ecosystems
Cold environment ecosystems
Coastal landscapes
Coastal landform processes
Management strategies for coastal landscapes
River landscapes
Fluvial landform processes
Management strategies for floods
Glacial landscapes
Glacial landform processes
Patterns of urban change
Urban sustainability and patterns of urban development
Global development gap and global aid
Rapid economic development
Economic changes in the UK
Resource management
Food supply
Food supply and water supply
Water supply
Natural and tectonic hazards
Earth layers and earthquakes
Tectonic plate margins
Responses to tectonic hazards
Risks of tectonic hazards
Weather hazards and atmospheric circulation
Tropical storm hazards
Responding to tropical storms
Climate change
Components and characteristics of ecosystems
Tropical rainforest ecosystems
Hot desert ecosystems
Cold environment ecosystems
Coastal landscapes
Coastal landform processes
Management strategies for coastal landscapes
River landscapes
Fluvial landform processes
Management strategies for floods
Glacial landscapes
Glacial landform processes
Patterns of urban change
Urban sustainability and patterns of urban development
Global development gap and global aid
Rapid economic development
Economic changes in the UK
Resource management
Food supply
Food supply and water supply
Water supply
- Crust: the Earth has two main types of crust:
- Oceanic crust: situated below the ocean and thinner than continental crust. This layer is made of basalt which is denser and ideal for subduction.
- Continental crust: found beneath continents and thicker than oceanic crust. This type of crust is made of granite which is less dense than basalt.
- Mantle: the thickest section of all the earth’s layers. (approx. 2,900 km) and made from semi-molten rock (magma).
- Core: broken down into two further layers (inner and outer) which are both made from nickel and iron.
- The inner core is a solid and the hottest part of the Earth.
- The outer core is liquid matter.
Unlock Layers of the Earth
Subscribe to SnapRevise+ to get immediate access to the rest of this resource.
Premium accounts get immediate access to this resource.