Chapter 5 Flashcards
What are rocks made up of
Different materials
What are the three rock groups
Igneous
Sedimentary
Metamorphic
How are igneous rocks formed
Formed when magma or lave cooled down
How are sedimentary rocks formed
Formed when existing rocks, plant and animal life were worn down and compressed mainly happened underwater
What forms metamorphic rock
Formed when existing rocks are changed by great heat or pressure
What’s the most common rock type in Ireland
Limestone (sedimentary)
Example of an igneous rock
Basalt
Example of a sedimentary rock
Limestone
Example of metamorphic rock
Marble
What is open-cast mining used for
Used when rocks/minerals are close to the surface also known as quarrying
What is shaft mining used for
Used to extract rocks and minerals that are deeper underground
What is drilling used for
Used for finding and bringing oil and gas to the surface
What is a fossil fuel
Fuels formed from plant and animal remains
What are the advantages of quarrying
Jobs
Collecting raw materials
Roads are improved
What are the disadvantages of quarrying
Noise pollution
Countryside destruction
Loss of farmland
Floods
