Exploring the World of Rocks

What are the three main types of rocks?

• Igneous, Sedimentary, Metamorphic

• Coal, Sandstone, Slate

• Basalt, Shale, Quartzite

• Granite, Limestone, Clay

How do igneous rocks form?

• Igneous rocks are created by the erosion of existing rocks.

• Igneous rocks form from the compression of sediment.

• Igneous rocks form from the cooling and solidification of magma or lava.

• Igneous rocks develop from the crystallization of organic materials.

Which of these is an example of a metamorphic rock

• Marble

• Basalt

• Sandstone

• Limestone

Organise these rock examples into the correct category

Groups:

(a) Igneous

,

(b) Sedimentary

,

(c) Metamorphic

• Basalt

• Granite

• Limestone

• Sandstone

• Marble

• Quartzite

Identify the rock type in picture A and B

a

b

Quartzite 

Sandstone 

Marble 

Granite 

Limestone

Basalt

Where in Ireland would you see this rock formation ?

a

b

The Giants Causeway, Co. Antrim

The Burren, Co. Clare

Mountains of Munster 

Match the rocks to the correct type

• Sandstone

• 
• Limestone

• 
• Granite

• 
• Basalt

• 

Describe how basalt (igneous) rock is formed

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Describe how granite (igneous) rock is formed

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Describe how limestone (sedimentary) rock is formed

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