Warm up 9 12
Download
1 / 58

Warm-Up 9-12 - PowerPoint PPT Presentation


  • 97 Views
  • Uploaded on

Warm-Up 9-12. If a region of a map has contour lines close together what does that tell you about the region? Why do contour lines never overlap? Draw a small contour map of a 100m tall mountain with two peaks. Maps and Topography! To LITHOSPHERE!. Rocks. What is a Rock?.

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 ' Warm-Up 9-12' - wardah


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
Warm up 9 12
Warm-Up 9-12

  • If a region of a map has contour lines close together what does that tell you about the region?

  • Why do contour lines never overlap?

  • Draw a small contour map of a 100m tall mountain with two peaks.


Maps and topography to lithosphere

Maps and Topography! ToLITHOSPHERE!



What is a rock
What is a Rock?

  • Naturally-occurring mixtures of minerals, mineraloids, glass or organic matter.


What is the difference between a rock and a mineral
What is the difference between a rock and a mineral?

  • Rocks are made up of ONE or MORE minerals.


Warm up happy friday
Warm-Up. Happy Friday!

  • What is magma?

  • What is lava?

  • Explain the difference between a rock and a mineral.

  • How do rocks form?


Take about 10min to quietly read the article

Take about 10min to quietly read the article.

Then answer the following questions:

What activities in your life are dependent upon the successful work of a geologist?

How could an understanding of geology help you understand the world around you?

What did you find the most interesting about this article?

Does anything about this article make you nervous?


What is a rock1
What is a Rock?

  • Rocks are divided into 3 groups based on how they were formed:

    • IGNEOUS

    • SEDIMENTARY

    • METAMORPHIC



Igneous rocks are formed from the cooling down of magma or lava.


2 types of igneous rocks
2 types of igneous rocks

  • Intrusive

  • Extrusive


INTRUSIVE rocks cooled slowly INside of the earth. Composed of larger crystals


EXTRUSIVE means “out of the earth”

It cooled on the surface of the earth and has small crystals

Intrusive



Igneous rocks are classified according to the composition and texture.

Composition is the minerals that the rock is made of


Felsic and texture. rocks: light colored, high silica content


Mafic and texture. rocks: dark rock, low silica content


Texture is the size, shape, arrangement, and distribution of those minerals in the rock.

There are 4 textures: glassy, fine-grained, course-grained, and porphyritic.

rhyolite


Glassy – obsidian those minerals in the rock.


Fine-grained - basalt those minerals in the rock.


Course-grained - Granite those minerals in the rock.


Porphyritic those minerals in the rock. means that it has large crystals with small ones also.


Sedimentary rocks
Sedimentary Rocks those minerals in the rock.


Sediments are those minerals in the rock. pieces of solid material that have been weathered and then deposited


Sedimentary rocks are formed when rocks are broken down into sediments (weathered) and compacted together. (Compaction and cementation)


Sedimentary rocks are classified sediments (weathered) and compacted together. (Compaction and cementation)

3 classifications: clastic, chemical, organic

breccia


CLASTIC: sediments (weathered) and compacted together. (Compaction and cementation)

1. They are the most common sedimentary rock

  • Are made from pieces of previous rock

  • Example: “Big Chunks” – Breccia

  • Example: Small pebbles, clay, and sand “glued” together – Conglomerate

  • Example: Small sand grains only = sandstone


CHEMICAL ROCKS sediments (weathered) and compacted together. (Compaction and cementation)

Formed when a lake or ocean dries up, leaving behind minerals.

Calcite, Halite, and Gypsum are examples


ORGANIC ROCKS sediments (weathered) and compacted together. (Compaction and cementation)

They are formed from the remains of once living things

Coal is made from plant remains.


Metamorphic rocks

Schist sediments (weathered) and compacted together. (Compaction and cementation)

Gneiss

Metamorphic Rocks

  • Were once igneous or sedimentary rocks

  • Have been changed because of heat and/or pressure.

  • Very strong rock. Resistant to weathering.


END sediments (weathered) and compacted together. (Compaction and cementation)


  • Explain the rock cycle in enough detail to relate the cycling of materials - formation and destruction of the three major rock types to the

  • forces responsible: physical and chemical weathering, heat and pressure, deposition, foliation and bedding. The forms of energy that

  • drive the rock cycle include heat and mechanical (gravitational potential) energy.


Warm up
Warm-Up cycling of materials - formation and destruction of the three major rock types to the

  • How is an INTRUSIVE igneous rock formed?

  • What are the 3 types of sedimentary rocks?

  • When are chemical sedimentary rocks formed?


The rock cycle
The Rock Cycle cycling of materials - formation and destruction of the three major rock types to the


1. The rock cycle is cycling of materials - formation and destruction of the three major rock types to the the continuous changing and remaking of rocks.


Http www classzone com books earth science terc content investigations es0602 es0602page02 cfm
http://www.classzone.com/books/earth_science/terc/content/investigations/es0602/es0602page02.cfmhttp://www.classzone.com/books/earth_science/terc/content/investigations/es0602/es0602page02.cfm


2. http://www.classzone.com/books/earth_science/terc/content/investigations/es0602/es0602page02.cfmIgneous rocks and sedimentary rocks may be transformed by heat, pressure, and chemical reactions into metamorphic rocks.



Eroded

(broken down)

Heat And Pressure

Melted

Melted

Heat And Pressure

Eroded

(broken down)



Warm up 2 6
Warm Up 2/6

  • Write 3-5 sentences about anything and everything that you know about rocks.

    (Things to think/write about: Are there different types of rocks? If so, what makes them different? Why are rocks different colors? Why do rocks have different textures?)



Rock

  • a mixture of one or more minerals, volcanic glass, organic matter, or other materials


Sedimentary rock
Sedimentary Rock

  • forms when sediments are compacted and cemented together or when minerals are left behind by evaporation



Metamorphic rock
Metamorphic Rock

  • forms when heat and pressure act on igneous, metamorphic or sedimentary rock and change its form or make up.



Igneous rock
Igneous Rock

  • intrusive or extrusive rock formed when hot magma cools and hardens



Rock cycle
Rock Cycle

  • model that describes how rocks slowly change from one form to another through time



Sediments
Sediments

  • loose materials such as rock fragments, dirt, silt, and sand


Magma
Magma

  • hot, melted rock material beneath the Earth’s surface


Weathering
Weathering

  • surface process that breaks rocks into smaller pieces (wind, rain, temperature, etc)


Erosion
Erosion

  • process in which surface materials (sediments) are worn away and transported from one place to another by water, wind, and glaciers


Deposition
Deposition

  • The process of eroded materials being moved and deposited in another place.


Cementation
Cementation

  • sedimentary rock-forming process in which large sediments are held together by natural cements (matrix) like evaporated mud


Compaction
Compaction

  • process that forms sedimentary rocks when layers of small sediments are compressed by the weight of the layers above


ad