It is a solid metallic ball made mainly of iron. The hottest part of the Earth. What are active, dormant and extinct volcanoes? How can we increase the amount of food produced globally? Jamaica Case Study, How can the growth of tourism reduce the development gap? Where are polar and tundra environments located? Economic activities in glaciated upland areas, Glaciation Photo gallery – Goat Fell, Isle of Arran. There are no samples of Earth's core available for direct measurement, as there are for Earth's mantle. Opportunities and Challenges in the Sahara Desert, Opportunities and Challenges in the Thar Desert, Opportunities and Challenges in the Western Desert. What are the causes of deforestation in the Amazon? How do weather and climate affect river landscapes? Weathering and mass movement in river valleys. A country which is over-populated – Bangladesh. What is the impact of humans on the savanna? What are the environmental impacts of economic development in Nigeria? Other elements found in the core include nickel, a metal similar to iron, and silicon, an abundant substance used in glass and computer chips. How has the growth of Lagos caused inequality? Where do volcanoes and earthquakes happen? How have animals adapted to the rainforest environment? Tunisia Case Study. The River Tees – landforms of erosion and deposition, Case Study – Ganges/Brahmaputra River Basin, Geological time is on a different time to human time, Different rocks create contrasting landforms and landscapes. Information about Earth's core mostly comes from analysis of seismic waves and Earth's magnetic field. Which landforms result from moving or melting ice? A country with a rate of high population growth – China. What does scenery formed by erosion look like? What are the social and economic opportunities associated with the growth of Rio? What is chemical and mechanical weathering? Temperatures up to 5,550°C. A case study of a sparsely populated area – Himalayan Mountains, A case study of a densely populated area – Greater London. What are shanty town improvement schemes? Here, temperatures reach extraordinary levels, estimated to be between 4,000–4,700ºC (7,200–8500ºF). How does food insecurity affect the environment? How have animals adapted to cold environments? The inner core is believed to be made up of an iron-nickel (metal) alloy. Sustainable development in the desert – The Great Green Wall. What are the physical characteristics of cold environments? What is the difference between a tornado and a hurricane? Calculations indicate that the core is about 85% iron metal with nickel metal making up … What problems are caused by global warming? What are the economic and environmental issues of energy production? Water quality and pollution management in the UK. How is a cold environment interdependent? (adsbygoogle = window.adsbygoogle || []).push({}); If you've found the resources on this site useful please consider making a secure donation via PayPal to support the development of the site. Coastal Environments CPD – Erosional Landforms, Coastal Management and Fieldwork on the Holderness Coast, Coastal Environments CPD – Erosional Erosion, Coastal Management, Deposition and Fieldwork on the Holderness Coast. Where are Temperate Deciduous Woodlands Located? How do changes affect the balance of an ecosystem? Earth's innermost section is called its inner core, and is believed to be just as hot as the sun's surface. Scientists know that the core is metal because: The density of Earth’s surface layers is much less than the overall density of the planet, as calculated from the planet’s rotation. What factors influence the effects and response to tectonic activity? What are the effects of economic development in Nigeria on quality of life? What factors affect population density and distribution? What is migration and why do people migrate? It was once believed that the earth's inner core was liquid, but Inge Lehmann - a seismologist - proved in theory in 1936 that the inner core was solid, and the outer core was liquid. What are the air masses that affect the UK? At the planet’s center lies a dense metallic core. How does flooding affect humans and the environment? The earth, from the center moving outward, is made up of the … Scientists believe that the Earth's inner core is a solid and is mainly composed of iron. If the surface layers are less dense than average, then the interior must be denser than average. A country which is under-populated – Australia. A country with a low rate of population growth or decline – Japan. Can the risks of volcanic eruptions be reduced? What is the site and situation of a settlement? Castleton A tourist honey pot in The Peak District, Case Study – Inner City Redevelopment – London’s Docklands. What are the characteristics of the inner core? Two Earthquakes Compared – Nepal and L’Aquila, Lombok Indonesia Earthquake 2018 Case Study, 2018 Sulawesi Indonesia Earthquake and Tsunami Case Study. Development, population change and the demographic transition model, Strategies for reducing the development gap, How can the growth of tourism reduce the development gap? What is the impact of humans on the desert? How has hot desert vegetation adapted to the climate? The inner core is the fourth layer inside the Earth. How has urbanisation helped Nigeria to develop? What is the Demographic Transition Model? Anak Krakatau & Sunda Strait Tsunami Indonesia Case Study 2018. Why is the Human Development Index important? How can the impacts of climate change be managed? How reliable are economic indicators of development? The inner … The scorching hot iron inner core is able to remain solid because of the extremely high pressures at the center of the Earth. Extreme weather in the UK – Beast from the East, Extreme Weather in the UK Summer Heatwave 2018. Changing rates of rainforest deforestation. Why are deserts located along the tropics? What are the effects of deforestation in the Amazon? How does geology affect the formation of river landforms? What is the location and importance of Rio de Janeiro? What are the impacts of industry on the physical environment? What is Nigeria’s location and importance? How did the temperate deciduous woodland get like this? https://www.internetgeography.net/wp-content/uploads/2019/07/IG-logo--1030x115.png. How have plants adapted to cold environments? You'll also find radioactive elements such as uranium … What is the impact of humans on the temperate deciduous woodland? Limestone Case Study – Malham, The Yorkshire Dales. What are the differences in global calorie intake and food supply? Economic opportunities and challenges in Lagos. What challenges are associated with the growth of Rio? How has demand for water in the UK changed? The significance of food, water and energy, An overview of global inequalities in the supply and consumption of resources, Carbon footprints, ‘food miles’ and moves towards local sourcing of food. Sustainable development in the Temperate Deciduous Woodland. Why is the weather of the UK so changeable? How are Nigeria’s trading and political relationships changing? International migration from Syria to Europe, Japan – A country with a high dependent population. How has the vegetation in the temperate deciduous forest adapted to the climate? Human and physical factors causing river flooding. How has rainforest vegetation adapted to the climate? What are the different types of weathering? Earth's inner core is the innermost geologic layer of the planet Earth. What is the role of transnational companies in Nigeria? Introduction to Natural Hazards and Structure of the Earth. Where are the areas of water deficit and surplus in the UK? What is the structure of the Temperate Deciduous Woodland? A solid mass of iron and nickel. It is primarily a solid ball with a radius of about 1,220 km, which is about 20% of Earth's radius or 70% of the Moon's radius. Although the inner core is very hot, it is not liquid like the outer core. What is the impact of humans on the Taiga? Sustainable Management of the Tropical Rainforest, Sustainable Management of the Amazon Rainforest. What are the characteristics of the outer core? Landforms in the middle course of a river. Distribution of earthquakes and volcanoes, Effects of earthquakes and volcanoes on people and the environment, Reducing the impacts of earthquakes and volcanoes, Population and settlement – iGCSE Geography, The main causes of a change in population size, A country with a rate of high population growth – China, A country which is over-populated – Bangladesh, A country which is under-populated – Australia, A country with a low rate of population growth or decline – Japan. Almería in Spain: a large-scale agricultural development, Sustainable Food Supplies in an LIC – Bangladesh. How is demand for energy changing in the UK? What is the structure of the tropical rainforest?

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