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+    Inside Planet Earth    Audrey Marshall    Grade 4
+    What is it made up of?Four    different    layersCrustMantleOuter    CoreInner    Core
+    The Crust       The part we live on       Thin like the skin of an apple           3-5 miles thick under the      ...
+    What is the Crust made of?     Continental                crust     made of Granite                    Granite     ...
+    Tectonic Plates       Slabs of rock made out of        the continental and oceanic        crusts       Pacific and ...
+    The Mantle       Largest layer 1800 miles        thick       Has hot and dense rock       The rock moves because  ...
+    Convention Currents     The        mantle flows     because of these     Caused by hot     material rising,     coo...
+    Outer Core     Like         a ball of hot     metal     Made of melted     nickel and iron     Located1800 miles  ...
+    Inner Core       Is so hot and has so much        pressure that it becomes a        solid       Located 4000 miles ...
+    The End    Isn’t the Earth cool?
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Technology powerpoint

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Technology powerpoint

  1. 1. + Inside Planet Earth Audrey Marshall Grade 4
  2. 2. + What is it made up of?Four different layersCrustMantleOuter CoreInner Core
  3. 3. + The Crust  The part we live on  Thin like the skin of an apple  3-5 miles thick under the oceans crust and 25 miles thick under the continents.  Temperatures vary from air temperature to 1600 degrees.  The crust is in pieces called plates.  These move along on top of the mantle.  Sometimes they cause earthquakes!
  4. 4. + What is the Crust made of?  Continental crust made of Granite Granite  Oceanic crust made of volcanic lava rock called basalt Basalt  The crust and the upper layer of the mantle make a zone of brittle rock called the Lithosphere.
  5. 5. + Tectonic Plates  Slabs of rock made out of the continental and oceanic crusts  Pacific and Antarctic Plates are the largest  Like icebergs only the tops of them are seen  They slowly bump into one another like bumper cars  At their boundaries earthquake and volcanic activity occur
  6. 6. + The Mantle  Largest layer 1800 miles thick  Has hot and dense rock  The rock moves because of temperature change  The movement causes the plates to move in the crust  The mantle can be 1600- 4000 degrees
  7. 7. + Convention Currents  The mantle flows because of these  Caused by hot material rising, cooling, and sinking over and over again.
  8. 8. + Outer Core  Like a ball of hot metal  Made of melted nickel and iron  Located1800 miles beneath the crust  1400 miles thick
  9. 9. + Inner Core  Is so hot and has so much pressure that it becomes a solid  Located 4000 miles beneath the crust  800 miles thick  9000 degrees  3,000,000 times the air pressure at sea level on earth
  10. 10. + The End Isn’t the Earth cool?

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