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Laabri

Year 8 Rocks

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Last updated about 1 year ago
20 Nsɛmmisa
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Liquid rock on the surface of the earth.

lava

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The solid outer layer of the earth, between about 8km and 40km thick.

crust

https://www.passmyexams.co.uk/GCSE/physics/interior-of-earth.html

Asemmisa {{asɛmmisaAhyɛnsode}}
1.

The solid outer layer of the earth, between about 8km and 40km thick.

This type of weathering happens when plants and animals break up rocks

biological

Asemmisa {{asɛmmisaAhyɛnsode}}
2.

This type of weathering happens when plants and animals break up rocks

This happens when another substance sticks sediments together

cementation

Asemmisa {{asɛmmisaAhyɛnsode}}
3.

This happens when another substance sticks sediments together

This type of weathering happens when acid rain falls onto rocks and reacts with them

chemical

https://www.passmyexams.co.uk/GCSE/physics/what-is-weathering.html

Asemmisa {{asɛmmisaAhyɛnsode}}
4.

This type of weathering happens when acid rain falls onto rocks and reacts with them

This happens when the weight of sediments above squashes together the sediments below

compaction

Asemmisa {{asɛmmisaAhyɛnsode}}
5.

This happens when the weight of sediments above squashes together the sediments below

When sediments stop moving and settle in one place

deposition

Asemmisa {{asɛmmisaAhyɛnsode}}
6.

When sediments stop moving and settle in one place

When rocks are broken down and transported away

erosion

Asemmisa {{asɛmmisaAhyɛnsode}}
7.

When rocks are broken down and transported away

A kind of physical weathering where water gets into cracks, turns to ice and expands, making the crack bigger

freeze thaw

Asemmisa {{asɛmmisaAhyɛnsode}}
8.

A kind of physical weathering where water gets into cracks, turns to ice and expands, making the crack bigger

This happens when temperature changes, wind or waves break up rocks.

Physical weathering

Asemmisa {{asɛmmisaAhyɛnsode}}
9.

This happens when temperature changes, wind or waves break up rocks.

The type of rock made when sediments are compacted or cemented into new rocks.

This type of rock is made up of grains so is Sedimentary.

The combination of grains and layers is typical of this type of rock.

https://www.passmyexams.co.uk/GCSE/physics/sedimentary-rocks.html

Asemmisa {{asɛmmisaAhyɛnsode}}
10.

The type of rock made when sediments are compacted or cemented into new rocks.

Small pieces of rock produced by weathering.

grains

https://www.passmyexams.co.uk/GCSE/physics/what-is-weathering.html

Asemmisa {{asɛmmisaAhyɛnsode}}
11.

Small pieces of rock produced by weathering.

Asemmisa {{asɛmmisaAhyɛnsode}}
12.

These processes move sediments.

A process that breaks up all types of rock into smaller pieces,.

weathering

https://www.passmyexams.co.uk/GCSE/physics/erosion-transport.html

Asemmisa {{asɛmmisaAhyɛnsode}}
13.

A process that breaks up all types of rock into smaller pieces,

.

Asemmisa {{asɛmmisaAhyɛnsode}}
14.

The innermost part of the earth

Asemmisa {{asɛmmisaAhyɛnsode}}
15.

The zone of the earth above the core but below the crust.

The type of rock formed when liquid rock cools and freezes.

Note this has cooled slowly below the earth so the crystals have had time to grow so the interlocking crystals are larger than those found in volcanic rocks that crystallise quickly on the earth's surface.

This rock is called granite.

igneous

https://www.passmyexams.co.uk/GCSE/physics/rock-process-igneous-rocks.html

Asemmisa {{asɛmmisaAhyɛnsode}}
16.

The type of rock formed when liquid rock cools and freezes.

Made of interlocking crystals

Asemmisa {{asɛmmisaAhyɛnsode}}
17.

Liquid rock on the surface of the earth. (This will crystallise to form extrusive igneous rocks with small crystals)

Liquid rock below the ground. (This will crystallise to form extrusive igneous rocks with larger crystals)

Magma

Asemmisa {{asɛmmisaAhyɛnsode}}
18.

Liquid rock below the ground () . (This will crystallise to form extrusive rocks with larger crystals)

The type of rock formed when heat or pressure change an existing rock.

This rock has crystals and layers so is metamorphic

Metamorphic

Asemmisa {{asɛmmisaAhyɛnsode}}
19.

The type of rock formed when heat or pressure change an existing rock.

To make a rock.

This rock has and layers so is metamorphic

Asemmisa {{asɛmmisaAhyɛnsode}}
20.

https://www.passmyexams.co.uk/GCSE/physics/rock-cycle.html

  1. Transport and deposition of the rock fragments

  2. Melting to form magma

  3. Compaction and cementataion to form sedimentary rocks

  4. Deeper burial and heating to form metamorphic rocks

  5. Crystallisation of magma to form original igneous rock

  6. Weathering and erosion of the original rock