Log inSign up for FREE
Library

Year 8 Rocks

Last updated 5 months ago
20 questions

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

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



1

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

_______

This happens when another substance sticks sediments together



cementation
1

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

1

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

1

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

_______

When sediments stop moving and settle in one place



deposition

1

When sediments stop moving and settle in one place

_______
When rocks are broken down and transported away


erosion
1
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
1
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
1
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

1
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

1
Small pieces of rock produced by weathering.
_______
1
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

1
A process that breaks up all types of rock into smaller pieces,
._______
1
The innermost part of the earth
_______
1
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

1

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

Made of interlocking crystals

_______
Liquid rock on the surface of the earth.


lava
1
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
1
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
1
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
6

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


  1. Melting to form magma
  2. Deeper burial and heating to form metamorphic rocks
  3. Crystallisation of magma to form original igneous rock
  4. Weathering and erosion of the original rock
  5. Compaction and cementataion to form sedimentary rocks
  6. Transport and deposition of the rock fragments