Chapter 5 - Rocks Flashcards
Explain how metamorphic rock is formed.
Metamorphic rock is formed when existing rocks are changed over time by heat and pressure.
Explain how sedimentary rock is formed.
Sedimentary rock is formed when existing rocks, plants and animal life are worn down and compressed over geological time.
An igneous rock has large crystals. Name the rock.
Granite.
An igneous rock has small crystals. Name the rock.
Basalt.
Explain how igneous rock is formed.
Igneous rock is formed when magma or lava cool down.
What are the three types of rocks?
Igneous, metamorphic and sedimentary.
Sandstone is a sedimentary rock. True or false?
True.
Basalt is a white coloured rock. True or false?
False.
Marble is a sedimentary rock. True or false?
False.
What is Ireland’s most common sedimentary rock?
Limestone.
Name the metamorphic rock that was once sandstone.
Quartzite.
What igneous rock is found at the Giant’s Causeway, Co. Antrim?
Basalt.
Name the coarse multi-coloured igneous rock that is found in Wicklow.
Granite.
Name the fossil fuel that is found in the midlands of Ireland.
Peat.
Name one rock you have studied and state whether it is Igneous, Sedimentary or Metamorphic.
Name: Basalt
Type of rock: Igneous