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Identify the  following. <ul><li>It is a volcano that has moderately steep sides and sometimes have small craters in their...
<ul><li>This volcano consists almost entirely of loose, grainy cinders and almost no lava, They are small volcanoes. </li>...
<ul><li>This volcano has low slopes and consists almost entirely of frozen lavas. They almost always have large craters in...
 
 
VIDEO   PLAYERVIDEO  PLAYER
Rocks
What is rocks? Rocks - it is a solid part of the earth.
3 Types of Rocks Sedimentary Rocks Metamorphic Rocks Igneous Rocks
Igneous Rocks How it is formed ? <ul><li>Fire Rocks </li></ul><ul><li>Formed underground by trapped, cooled magma </li></u...
2 Types of Igneous Rocks <ul><li>Extrusive Igneous Rocks </li></ul><ul><li>Is made when  magma comes to the Earth’s surfac...
Example of Igneous Rocks Granite Scoria Pumice Obsidian
Sedimentary Rocks How it is formed? <ul><li>Wind and water break down the earth </li></ul><ul><li>Bits of earth settle in ...
3 Main Types of Sedimentary Rocks <ul><li>Clastic – little pieces of broken up rock  which have piled up and been “lithifi...
Example of Sedimentary Rocks Gypsum Sandstone Shale Limestone Conglomerate
Metamorphic Rocks How it is formed? <ul><li>Rocks that have changed </li></ul><ul><li>They were once igneous or sedimentar...
2 Basic Types of Metamorphic Rocks <ul><li>1. Foliated Metamorphic Rocks </li></ul><ul><li>- rocks which have layered or b...
Examples of Metamorphic Rocks Schist Gneiss
Rocks Have Been Used For Many Years  and  For Many Things
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
Rocks
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Rocks.powerpoint.jocelyn cabling

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Transcript of "Rocks.powerpoint.jocelyn cabling"

  1. 1. Science Subject
  2. 2. Identify the following. <ul><li>It is a volcano that has moderately steep sides and sometimes have small craters in their summits. </li></ul>
  3. 3. <ul><li>This volcano consists almost entirely of loose, grainy cinders and almost no lava, They are small volcanoes. </li></ul>
  4. 4. <ul><li>This volcano has low slopes and consists almost entirely of frozen lavas. They almost always have large craters in their summits. </li></ul>
  5. 7. VIDEO PLAYERVIDEO PLAYER
  6. 8. Rocks
  7. 9. What is rocks? Rocks - it is a solid part of the earth.
  8. 10. 3 Types of Rocks Sedimentary Rocks Metamorphic Rocks Igneous Rocks
  9. 11. Igneous Rocks How it is formed ? <ul><li>Fire Rocks </li></ul><ul><li>Formed underground by trapped, cooled magma </li></ul><ul><li>Formed above ground when volcanoes erupt and magma cools </li></ul>
  10. 12. 2 Types of Igneous Rocks <ul><li>Extrusive Igneous Rocks </li></ul><ul><li>Is made when magma comes to the Earth’s surface in the form of lava and cools and harden. </li></ul><ul><li>Intrusive Igneous Rocks </li></ul><ul><li>If the magma stays underground , cools and harden. </li></ul>
  11. 13. Example of Igneous Rocks Granite Scoria Pumice Obsidian
  12. 14. Sedimentary Rocks How it is formed? <ul><li>Wind and water break down the earth </li></ul><ul><li>Bits of earth settle in lakes and rivers </li></ul><ul><li>Layers are formed and build up </li></ul><ul><li>Pressure and time turn the layers to rock </li></ul>
  13. 15. 3 Main Types of Sedimentary Rocks <ul><li>Clastic – little pieces of broken up rock which have piled up and been “lithified” by compaction and sedimentation. </li></ul><ul><li>Chemical- many of this form when standing water evaporates, leaving dissolved minerals behind. </li></ul><ul><li>Organic- many animals use calcium for shells, bones and teeth. These bits of calcium can pile up in the sea floor and accumulate into a thick enough layer to form an organic sedimentary rock. </li></ul>
  14. 16. Example of Sedimentary Rocks Gypsum Sandstone Shale Limestone Conglomerate
  15. 17. Metamorphic Rocks How it is formed? <ul><li>Rocks that have changed </li></ul><ul><li>They were once igneous or sedimentary </li></ul><ul><li>Pressure and heat changed the rocks </li></ul>
  16. 18. 2 Basic Types of Metamorphic Rocks <ul><li>1. Foliated Metamorphic Rocks </li></ul><ul><li>- rocks which have layered or banded appearance that is produced by exposure to heat and directed pressure. </li></ul><ul><li>2. Non Foliated Metamorphic Rocks </li></ul><ul><li>- rocks which do not have a layered or banded appearance. </li></ul>
  17. 19. Examples of Metamorphic Rocks Schist Gneiss
  18. 20. Rocks Have Been Used For Many Years and For Many Things
  19. 36. Rocks
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