1. Rocks

2. Types of Rocks
Metamorphic Rocks
Igneous Rocks
Sedimentary Rocks

3. 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

4. Types of Sedimentary Rocks
Sandstone
Limestone
Shale
Conglomerate

5. Metamorphic Rocks What are They?
Rocks that have changed
They were once igneous or sedimentary
Pressure and heat changed the rocks

6. Types of Metamorphic Rocks
Schist
Gneiss

7. Igneous Rocks What are They?
Fire Rocks
Formed underground by trapped, cooled magma
Formed above ground when volcanoes erupt and magma cools

8. Types of Igneous Rocks
Basalt
Granite
Pumice

9. Rocks Have Been Used For Many Years and For Many Things

25. Rocks

27. Rock group
Formed
Examples 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
Sedimentary
The 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
Metamorphic
Other rocks changed by heat or pressure
Marble: Co.Kilkenny
Quartzite: Mt. Errigal, Donegal
Marble: fireplaces and headstones
Quartz: jewellery and road surfaces