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Chapter 5
Rocks
| Question | Answer |
|---|---|
| what are rocks made of | Minerals |
| name the three rock groups | Igneous Sedimentary Metamorphic |
| what is the most common rock type in Ireland | Limestone |
| what are igneous rocks formed from | Magma |
| what type of rock is it when the magma gets stuck inside the earths crust. | Intrusive |
| what type of rock is it when lava reaches the earths surface | Extrusive |
| name two igneous rocks | Granite Basalt |
| Explain the difference between intrusive and extrusive rocks | Intrusive= Large Crystals Extrusive= Small Crystals |
| How fast do (A) Intrusive rocks cool (B) Extrusive rocks cool | (A) Slow (B) Fast/quickly |
| what type of crystals does granite have | Large/big |
| what can granite be used for | Building monuments and gravestones Kitchen countertops Fireplaces |
| where can granite be found | Dublin-Wicklow mountains |
| what type of crystals does basalt have | small |
| what can basalt be used for | Road building |
| where can basalt be found | The Giants Causeway |
| what are sedimentary rocks made of | Pieces of other rock Remains of dead plants and animals |
| what is the material that binds the rock together | cement |
| What are the layers that sedimentary rock formed called | Strata |
| name two sedimentary rock | Sandstone Limestone |
| what is sandstone made of | Sand |
| what can sand stone be used for | Tiles Monuments |
| where can sandstone be found | Macgillycuddy's Reeks |
| what is limestone made of | The remains of dead sea creatures |
| name the two characteristics of limestone | Permeable Soluble |
| what can limestone be used for | a base for building roads monuments |
| where can limestone be found | the Burren |
| Name two metamorphic rocks | Marble Quartzite |
| how are metamorphic rocks formed | they star of as igneous or sedimentary then due to great heat or great pressure they change |
| what rock is marble made of | Limestone |
| what colours can marble be | white green red black |
| what can marble be used for | counter tops fireplaces |
| where can marble be found | Connemara |
| what stone is quartzite made of | Sandstone |
| what can quartzite be used for | sufacing of roads watches in glass |
| where can quartzite be found | Sugarloaf |
| explain the term "natural resource" | Resources that come from nature and that humans can use |
| name some natural resources | oil, gas, coal, turf, gravel, stone, sand, lead, copper, |
| what can oil gas coal and turf be used for | energy and heat sources |
| what can gravel stone and sand be used for | building materials |
| what can lead and copper be used for | pipes and batteries |
| name three ways of extracting natural resources | Drilling Quarrying Shaft mining |
| explain the process of drilling | boring/drilling into the earths crust |
| what natural resource are you extracting when drilling | oil or gas |
| tell me the environmental impact of Drilling | onshore and offshore drilling can cause damage to the local environment Birds and animals can swallow the oil |
| tell me the economic impact drilling | at full production corrib has the potential to provide up to 60% of Ireland's gas needs |
| explain the process of quarrying | removing rock, sand, gravel from the ground |
| what is quarrying also known as | open cast mining |
| where does quarrying take place | at or near the earths surface |
| tell me the environmental impact of quarrying | a lot of dust is created which can cause air pollution quarrying is noisy because of breaking rocks and truck coming and going leading to noise pollution |
| tell me the economic impact of quarrying | there are approximately 10,000 people employed. generates over 1 billion for the Irish economy |
| explain the process of shaft mining | drilling vertically into the earth to gain access to minerals beneath the surface |
| what natural resource is being extracted when shaft mining | Coal, Lead and zinc |
| tell me the the environmental impact of shaft mining | large quantities of rock are brought up and this created dust. this dust can cause many health problems for people who breathe them in |
| tell me the economic impact of shaft mining | the tara lead and zinc mines in county meath supports 730 jobs directly and many more indirectly |