Powerpoint for igneous rocks by sophia and danny

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Powerpoint for igneous rocks by sophia and danny

  1. 1. IGNEOUS ROCKS By Sophia and Danny
  2. 2. HOW IGNEOUS ROCKS ARE FORMED <ul><li>Igneous rocks are rocks formed by the cooling, hardening, and the freezing of lava or magma </li></ul><ul><li>Igneous rocks may or may </li></ul><ul><li>not crystallize while cooling </li></ul><ul><li>Most of the 700 igneous rocks </li></ul><ul><li>are formed under the Earth’s crust </li></ul>
  3. 3. THE ROCK TYPES AND THEIR DIFFERENCES <ul><li>Igneous </li></ul><ul><li>Sedimentary </li></ul><ul><li>Metamorphic </li></ul><ul><li>The difference between igneous and metamorphic is that the metamorphic rocks are formed under pressure and igneous rocks are just cooled off lava/magma. </li></ul><ul><li>The difference between igneous and sedimentary rocks are that sedimentary rocks are made of different rocks, animal parts, and plants mushed together to make one rock. </li></ul>
  4. 4. <ul><li>Intrusive rocks: </li></ul><ul><li>Solidified inside the Earth’s surface </li></ul><ul><li>As the active volcano turns into a extinct volcano, the lava /magma inside hardens and becomes a Intrusive Igneous rock </li></ul>INTRUSIVE AND EXTRUSIVE ROCKS <ul><li>Extrusive rocks: </li></ul><ul><li>Solidified above the Earth’s surface. </li></ul><ul><li>First a volcano erupts or magma/lava oozes out the volcano. Then the magma/lava cools or hardens to form a extrusive igneous rock </li></ul>
  5. 5. <ul><li>Extrusive rocks: </li></ul><ul><li>Basalt </li></ul><ul><li>Obsidian </li></ul><ul><li>Pumice </li></ul><ul><li>Rhyolite </li></ul><ul><li>Scoria </li></ul>TYPES OF INTRUSIVE AND EXTRUSIVE IGNEOUS ROCKS <ul><li>Intrusive rocks: </li></ul><ul><li>Diorite </li></ul><ul><li>Gabbro </li></ul><ul><li>Pegmatite </li></ul><ul><li>Granite </li></ul>
  6. 6. THE ROCK CYCLE <ul><li>This is the rock cycle: </li></ul>
  7. 7. WE HOPE YOU WERE LISTENING! THAT’S BECAUSE THERE IS GOING TO BE A QUIZ!
  8. 8. QUIZ! <ul><li>What rock is this rock? </li></ul><ul><li>Is a Gabbro an intrusive or an extrusive rock? </li></ul><ul><li>What’s the difference between an intrusive and a extrusive rock? </li></ul><ul><li>Who are the authors of this PowerPoint? </li></ul>
  9. 9. A JOKE <ul><li>Q=What music does rocks like best? </li></ul><ul><li>A=rock & roll! </li></ul>
  10. 10. WORDS YOU MAY NOT KNOW/INDEX <ul><li>Crystallize- A form of a rock slowly or quickly turned into a crystal/rock </li></ul><ul><li>lava/magma-a liquid that is formed inside a volcano, and when cooled off it’s turned into a igneous rock </li></ul><ul><li>Sophia-wisdom </li></ul><ul><li>Danny-Clear water of the East Sea </li></ul>
  11. 11. ANY QUESTIONS? Ask a question Or we’ll tickle this cute kitty!
  12. 12. APPLAUSE FOR US! (Please)

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