Types of Rocks Sedimentary Rocks Metamorphic Rocks Igneous
Rocks
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Sedimentary Rocks How They are Made Wind and water break down
the earth Bits of earth settle in lakes and rivers Layers are
formed and build up Pressure and time turn the layers to rock
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Types of Sedimentary Rocks Sandstone Shale Limestone
Conglomerate
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Metamorphic Rocks What are They? Rocks that have changed They
were once igneous or sedimentary Pressure and heat changed the
rocks
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Types of Metamorphic Rocks SchistGneiss
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Igneous Rocks What are They? Fire Rocks Formed underground by
trapped, cooled magma Formed above ground when volcanoes erupt and
magma cools
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Types of Igneous Rocks Granite Basalt Pumice
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Rocks Have Been Used For Many Years and For Many Things
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Rocks
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Rock groupFormedExamples and locations Uses Igneous When lava
or magma cooled and hardened in or on the crust Granite: Wicklow
Mountains Basalt: Giants Causeway, Co. Antrim Granite: worktops
Basalt: in tarmac to surface roads etc SedimentaryThe compressed
bits of plants, animals or other rocks Limestone: central plain of
Ireland Sandstone: Comeragh mtns, Waterford/Cork Limestone: front
of buildings, cement Sandstone: cement blocks MetamorphicOther
rocks changed by heat or pressure Marble: Co.Kilkenny Quartzite:
Mt. Errigal, Donegal Marble: fireplaces and headstones Quartz:
jewellery and road surfaces