iGCSE Environmental Management CAIE
Full course content, a smart revision plan and instant past paper feedback for iGCSE Environmental Management CAIE.
Content Overview
53 topics in 9 modules
☑️ Rocks and Minerals and their Exploitation 5 topics
- Formation of Rocks
- Extraction of Rocks and Minerals from the Earth
- Impact of Rock and Mineral Extraction
- Managing the Impact of Rock and Mineral Extraction
- Sustainable Use of Rocks and Minerals
☑️ Energy and the Environment 6 topics
- Fossil Fuel Formation
- Energy Resources and the Generation of Electricity
- Energy Demand
- Conservation and Management of Energy Resources
- Impact of Oil Pollution
- Management of Oil Pollution
☑️ Agriculture and the Enviro 8 topics
- Soil Composition
- Soils for Plant Growth
- Agriculture Types
- Increasing Agricultural Yields
- Impact of Agriculture
- Cause and Impacts of Soil Erosion
- Managing Soil Erosion
- Sustainable Agriculture
☑️ Water and its Management 10 topics
- Global Water Distribution
- The Water Cycle
- Water Supply
- Water Usage
- Water Quality and Availability
- Multipurpose Dam Projects
- Water Pollution and its Sources
- Impact of Water Pollution
- Managing Pollution of Fresh Water
- Managing Water-Related Disease
☑️ Oceans and Fisheries 4 topics
- Oceans as a Resource
- World Fisheries
- Impact of Exploitation of the Oceans
- Management of the Harvesting of Marine Species
☑️ Managing Natural Hazards 7 topics
- Earthquakes and Volcanoes
- Tropical Cyclones
- Flooding
- Drought
- The Impact of Natural Hazards
- Managing the Impacts of Natural Hazards
- Opportunities Presented by Natural Hazards
☑️ The Atmosphere and Human Activities 4 topics
- The Atmosphere
- Atmospheric Pollution and its Causes
- Impact of Atmospheric Pollution
- Managing Atmospheric Pollution
☑️ Human Population 4 topics
- Human Population Distribution and Density
- Changes in Population Size
- Population Structure
- Managing Human Population Size
☑️ Natural Ecosystems and Human Activities 5 topics
- Ecosystems
- Ecosystems under Threat
- Deforestation
- Managing Forests
- Measuring and Managing Biodiversity
iGCSE Environmental Management CAIE Revision Content
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iGCSE Environmental Management CAIE - Rocks and Minerals and their Exploitation - Formation of Rocks Content Preview
Rocks and Minerals and their Exploitation
Formation of Rocks
Formation of Rocks
Introduction to Rocks
- Rocks are comprised of minerals and are formed through various processes over millions of years.
- These processes include: weathering, erosion, compaction, deposition, and crystallisation.
- There are three major classes of rocks: Igneous, Sedimentary and Metamorphic.
- Each class of rocks is formed through distinct processes.
Igneous Rocks Formation
- Igneous rocks are formed when magma or lava cools and solidifies.
- The cooling could either happen underneath the Earth's crust (intrusive igneous rocks) or on the surface (extrusive igneous rocks).
- The rate of cooling can affect the size of crystals in the rock: slower cooling results in larger crystals.
- Examples of igneous rocks include granite, basalt, and obsidian.
Sedimentary Rocks Formation
- Sedimentary rocks are formed from the sediments of other rocks.
- These sediments are carried by water, wind or ice and deposited in layers over time.
- Over time, these layers are compressed and cemented together, forming sedimentary rocks.
- These rocks often contain fossils, providing valuable insight into Earth's history.
- Examples include sandstone, limestone, and shale.
Metamorphic Rocks Formation
- Metamorphic rocks are formed when existing rocks are subjected to high temperatures and pressure over time.
- This process, known as metamorphism, can alter the mineral composition and structure of the rock.
- Metamorphic rocks can be derived from igneous, sedimentary, or even other metamorphic rocks.
- Examples include marble, slate, and gneiss.
Question: Explain how the rate of cooling can affect the size of crystals in an igneous rock.
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