Rocks 2 Igneous

What is an igneous rock? 

• rock that forms from magma & lava
• rock that forms from weathering and erosion
• rock that forms from weathering and compaction
• rock that forms from heat and pressure

What does “igneous” mean? 

• cooling
• Ice
• fire
• pressure

An Extrusive rock is

• Rock formed above the surface of the Earth

• lava IN the Earth’s surface

• Rock formed below the surface of the Earth

• Magma on the Earth's surface

Basalt forms much of the crust beneath what? 

• ocean floor
• space
• soil
• mountains

An Intrusive rock is

• Rocks formed form magma above the Earths surface

• A rock formed from lava

• Rock formed above the surface of the Earth

• Rock formed below the surface of the Earth

What is the most common intrusive rock? 

• granite
• coal
• sand
• clay

What forms fine-grained (small crystals) in igneous rocks?

• A person named crystal

• Lava cooled by water

• fast cooling lava

• slowly cooling lava

What forms coarse-grained (large crystals) in igneous rocks?

• fast cooling lava

• slow cooling magma

• lava cooled quickly by water

• erosion of sand

Basalt can be found ____________

• Galtee Mountains

• Wicklow Mountains

• The Giants Causeway, Co. Antrim

• The Burren, Co. Clare

Granite is found in the _____________

• Mourne Mountains

• The Giants Causeway, Co. Antrim

• The Galtee Mountains

• The Burren