geography l.
Download
Skip this Video
Loading SlideShow in 5 Seconds..
Geography PowerPoint Presentation
Download Presentation
Geography

Loading in 2 Seconds...

play fullscreen
1 / 14

Geography - PowerPoint PPT Presentation


  • 143 Views
  • Uploaded on

Geography. The Story of Rocks!. By Bethany Parkinson 9MT. A rock is a compact mass of mineral matter. There are three main type's of rocks!. Igneous Metamorphic Sedimentary. Igneous Rocks. Igneous rocks are formed from Volcanoes .

loader
I am the owner, or an agent authorized to act on behalf of the owner, of the copyrighted work described.
capcha
Download Presentation

PowerPoint Slideshow about 'Geography' - dusty


An Image/Link below is provided (as is) to download presentation

Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author.While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server.


- - - - - - - - - - - - - - - - - - - - - - - - - - E N D - - - - - - - - - - - - - - - - - - - - - - - - - -
Presentation Transcript
geography

Geography

The Story of Rocks!

By Bethany Parkinson 9MT

a rock is a compact mass of mineral matter there are three main type s of rocks
A rock is a compact mass of mineral matter.There are three main type's of rocks!
  • Igneous
  • Metamorphic
  • Sedimentary
slide3

Igneous Rocks

  • Igneous rocks are formed from Volcanoes.
  • They are formed underground by the trapped, cooled magma.
  • They are also formed above the ground when the volcanoes erupts and the magma cools.
examples of igneous rocks
Examples of igneous rocks:
  • Examples of igneous rocks are basalt, granite, scona ,pumice and obsidan.

Pumice

Basalt

slide5

Uses for Igneous Rocks:

  • The most common igneous rocks are granite and basalt.
  • Granite is used for kitchen worktops and fire surrounds.
slide6

Sedimentary Rocks

  • Sedimentary Rocks are formed under water.
  • They are made up of layers of bits of eroded earth in lakes.
  • These layers form into rocks over a period of time.
types of sedimentary rocks
Types of Sedimentary Rocks:

Some examples of sedimentary rocks are shale, Sandstone ,Gypsum, Limestone, Coul and Conglome rale.

Limestone

Sandstone

uses for sedimentary rocks
Uses for Sedimentary Rocks:
  • Sedimentary rocks such as

sand stone are often used

by builders for decoration on window

surrounds and windowsills.

  • Coal is the most common sedimentary rock and is used to burn for heat.
slide9

Metamorphic Rocks

  • Metamorphic rocks are rocks that have been changed by heat and pressure.
  • Metamorphic rocks were once igneous or sedimentary but have been changed.
schist and gnesis are both types of metamorphic rocks
Schist and Gnesis are both types of metamorphic rocks.

Types of Metamorphic Rocks

Gnesis

Schist

uses for metamorphic rocks
Uses for Metamorphic Rocks:
  • Marble which is a metamorphic rock is used for wall and floor tiles.

It is also used for fireplaces.

  • Slate is another metamorphic rock which is used for roofs on buildings.
  • Metamorphic rocks are tough

and resistant.

slide12

Weathering

  • Weathering is when the rocks are broken down by different types of weather.
  • Freeze thaw weathering is when water gets into the crack of the rocks and it freezes. Repeated freezing and thawing weakens the rock and splits it into pieces.
  • Weathering is most common in mountainous areas.
slide13

Erosion

  • Erosion is the breakdown of the rocks through their contact with water, ice, heat or anything which rubs against the rocks.
  • Erosion changes the shapes of the rocks and their texture.
message from mr manson
Message from Mr Manson
  • A simple but very effective design for your work Bethany
  • I love the way that you have broken each rock type into 3 sections and explained each part individually.
  • Some really good work and presentation – well done
  • A1