Recent Changes

Metamorphic Rock
{slate_001.JPG} Slate
Metamorphic rock – ‘’Changing form’’
Once a rock exists (as igneous or sedimentary) , it can be changed into another different kind of rock by using pressure and heat (and a lot of time )
AS the sediments slowly pile on top of each other , they become tightly packed or form rock.
These beds push on the layers below and create enough pressure to form sedimentary rock –compaction. Or , as dripping water coats the sediment with dissolved minerals and cements the pieces together –cementation.
{sedimentary_003.JPG} Granite
{sedimentary_002.JPG} Mud stone ( shale )
{sedimentary_001.JPG} Coal
{Rocks_002.JPG} Basalt
Fire Rock
Igneous Rock –
Intrusive rock (from magma) cools very slowy inside the earths crust and forms large crystals.
{Rocks_003.JPG} Rhyolite
{Rocks_002.JPG} Basalt
{Rocks_001.JPG} Granite

Metamorphic Rock
{slate_001.JPG}
Metamorphic rock – ‘’Changing form’’
Once a rock exists (as igneous or sedimentary) , it can be changed into another different kind of rock by using pressure and heat (and a lot of time )
Metamorphic rock – rock that has changed form into a new type of rock.
The original rock ( parent rock ) is changed by pressure and heat to form a new metamorphic rock.
EXAMPLES:
Granite- Gneiss
Sand stone- Quartzite
Shale- Slate
Lime stone-Marble
Sedimentary Rocks
-Sedimentary rock-rock that is made from sediments (little pieces of rocks)little pieces of rock such as sand,mud and gravel (and plant and animal remains - fossils

{sedimentary_001.JPG} Coal
{Rocks_002.JPG} Basalt
{Rocks_003.JPG} Rhyolite
{Rocks_001.JPG} Granite
Fire Rock
Igneous Rock –
Extrusive rock (from lava) cools quickly and forms small crystals.
Intrusive rock (from magma) cools very slowy inside the earths crust and forms large crystals.
{Rocks_003.JPG} Rhyolite
{Rocks_001.JPG} Granite

Sedimentary Rocks
-Sedimentary rock-rock that is made from sediments (little pieces of rocks)little pieces of rock such as sand,mud and gravel (and plant and animal remains - fossils

AS the sediments slowly pile on top of each other , they become tightly packed or form rock.
These beds push on the layers below and create enough pressure to form sedimentary rock –compaction. Or , as dripping water coats the sediment with dissolved minerals and cements the pieces together –cementation.
{Rocks_002.JPG}{sedimentary_003.JPG}
{sedimentary_002.JPG} Mud stone ( shale )
{sedimentary_001.JPG} Coal
{Rocks_002.JPG} Basalt
{Rocks_003.JPG} Rhyolite
{Rocks_001.JPG} Granite

Sedimentary Rocks
-Sedimentary rock-rock that is made from sediments (little pieces of rocks)little pieces of rock such as sand,mud and gravel (and plant and animal remains - fossils
Most sedimentary rocks cannot form without water
These sediments are moved by water, wind, and gravity and settle on top of each other in layers (called beds)
AS the sediments slowly pile on top of each other , they become tightly packed or form rock.
These beds push on the layers below and create enough pressure to form sedimentary rock –compaction. Or , as dripping water coats the sediment with dissolved minerals and cements the pieces together –cementation.
{Rocks_002.JPG} Basalt
{Rocks_003.JPG} Rhyolite