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Rocks Flashcards

(9 cards)

1
Q

What are minerals?

A

Naturally occurring solid materials, when one or more stick together a rock is formed.

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2
Q

Name and briefly explain the three categories of rocks

A

Igneous– Made from lava or magma.
Sedimentary – formed from particles/sediments.
Metamorphic – made from other rocks.

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3
Q

How is basalt made?

A

Lava cools above ground.

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4
Q

How is granite made?

A

Magma cools underground

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5
Q

Name 2 differences between Basalt and Granite

A
  1. Basalt is fine grained while Granite is coarse grained.
  2. Basalt is black or dark grey and Granite is commonly a light grey.
  3. Basalt is used for road-building and Granite is used to headstones.
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6
Q

What minerals are in Basalt and where can it be found?

A

The minerals are feldspar and quarts, Giants Causeway in Antrim

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7
Q

What minerals are in granite and where can it be found?

A

Quartz, Mica And feldspar, County Wicklow

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8
Q

What are common sediments of sedimentary rocks?

A

Remains of rocks, plants and Dead sea life

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9
Q

What are rocks?

A

Rocks are the hard material that form part of the earths crust. the main ingredient and rocks is minerals.

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