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How is Earth Shaped and Reshaped

How is Earth Shaped and Reshaped. BY: Breanna Yang 2012-2013 Fourth Grade. How Does Earth’s Surface Change. Chemical Weathering Physical Weathering Erosion Volcanoes Earthquakes. Physical Weathering. Volcano. Chemical Weathering. Erosion. Chemical Weathering.

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How is Earth Shaped and Reshaped

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  1. How is Earth Shaped and Reshaped BY: Breanna Yang 2012-2013 Fourth Grade

  2. How Does Earth’s Surface Change • Chemical Weathering • Physical Weathering • Erosion • Volcanoes • Earthquakes PhysicalWeathering Volcano ChemicalWeathering Erosion

  3. Chemical Weathering • Causes rocks to change into different materials • Acid rain weathers rocks • Water and warm temperatures cause chemical weathering

  4. Physical Weathering • Breaks rocks into smaller pieces • Plant roots split soil and rocks • Ice causes a water bottle to change shape

  5. Erosion • Movement of weathered material

  6. Volcanoes • Cone-shaped • Forms weak spots in Earth’s surface • Erupts when magma reaches surface • Pressure builds up so gasses explode

  7. Earthquakes • Earth’s outer layer ,the crust, is on top of the upper mantle • Faults are breaks or cracks in rocks where Earth’s plates can move • Earthquakes are sudden movements that cause Earth’s crust to shake • Vibrations move as waves through Earth’s surface

  8. Fun Facts • The order of size for rocks from greatest to least is: Boulder - 300 mm, Cobble - 100 mm, Pebble - 30 mm, Sand – 1mm, silt, and clay. • Rivers erode rocks and soil, and they carry sand, silt, mud, and clay to new places

  9. I hope it was informational !!!!

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