Rocks Flashcards

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1
Q

How are rocks different from each other?

A

Hardness
Texture (How they feel)
Colour
Mineral content

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2
Q

Name 3 different groups of rocks

A

Igneous
Sedimentary
Metamorphic

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3
Q

How are igneous rocks formed

A

When lava/magma cools and solidifies which can happen above or below the surface

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4
Q

Examples of Igneous rocks

A

Basalt , Granite

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5
Q

How are sedimentary rocks formed

A

Formed when particles of rocks,dead plants and animals(Fossils).These were deposited on the sea floor and over time layers of this material are compressed and cemented together creating solid rock

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6
Q

Examples of sedimentary rock

A

Limestone , Sandstone

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7
Q

How are metamorphic rocks formed

A

Formed from rocks that already exist(Sedimentary + Igneous).Formed when these 2 are changed into harder rocks from great heat or pressure.

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8
Q

Examples of metamorphic rock

A

Quartzite,Marble

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9
Q

What colour is basalt

A

Grey/Black colour

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10
Q

Basalt’s texture

A

Medium grained

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11
Q

Do basalts have small/big crystals. Why?

A

They have small crystal because they cool/harden very quickly

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12
Q

Where can basalt be found

A

It can be found in Antrim/Derry plateau. Giant’s Causeway which is part of the plateau

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13
Q

What can basalt be used for

A

Road chippings

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14
Q

What colour is Granite

A

Black to cream

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15
Q

What type of texture does a Granite have

A

Coarse grained

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16
Q

Do Granites have small/big crystals. Why?

A

They have big crystals because they cool/harden slowly

17
Q

Where can Granite be found

A

It can be found in the Wicklow mountains

18
Q

What can Granite be used for

A

Worktops,fireplaces

19
Q

What colour is limestone

A

grey coloured rock

20
Q

Name characteristics of a limestone

A

Permeable (Water can pass through it)

Can be weathered down

21
Q

Where can limestone be found

A

The Burren Co. Clare

22
Q

What can limestone be used for

A

Monuments , Buildings and can be used to improve soil fertility

23
Q

What colour is sandstone

A

Reddish coloured

24
Q

What’s the sandstone texture

A

It’s coarse in texture

25
Q

Where can sandstone be found

A

McGillycuddy Reeks , Co. Kerry

Galtee Mountains

26
Q

What is sandstone used for

A

Sandstone is used for patios and in the construction industry

27
Q

How is marble formed

A

It is formed when limestone is put into great or pressure.

28
Q

What colour is marble

A

It’s a very hard rock that can vary in colur

29
Q

What can be marble be used for

A

Marble can be used for monuments, floor tiles, fireplaces and ornaments.

30
Q

Name some marbles that is located in different places

A

White Marble - Co.Antrim
Red Marble - Co. Cork
Green Marble - Co. Galway
Black Marble - Co. Kilkenny

31
Q

How is quartzite formed

A

Quartzite is