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Powerpoint project final

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  • 1. By: Catie McGee
    Changes in the earth’s surface
  • 2. Erosion
    Glaciers
    Volcanoes
    Earthquakes
    Landslides
    Natural causes of change
  • 3. The Process that breaks things down.
    Erosion
  • 4. After it rains and you go outside to play, you might notice a lot of small rocks and dirt at the bottom of a hill.
    This is because erosion took place.
    The water washed the smaller material down the hill.
    example
  • 5. The processes that change the character of rocks at or near the Earth's surface
    Weathering
  • 6. Mechanical Weathering
    Physical
    Breaks down rocks into smaller pieces
    Caused by water freezing and melting
    • Usually at the Earth’s surface
    First type
  • 7. Chemical Weathering
    Rock Decomposition
    Rocks are exposed to water and gases
    Change chemical compounds- form new rocks
    Second type
  • 8. A large river of ice that moves very slowly.
    glaciers
  • 9. While glaciers move slowly, they carve out the ground.
    The carving makes valleys.
    Making of valleys
  • 10. A mountain that opens down into a pool of molten rock below Earth’s surface.
    volcanoes
  • 11. Plates under Earth’s crust move apart
    Movement causes friction
    Friction causes pressure build up
    High pressure causes a volcanic eruption
    How they work…
  • 12. http://www.youtube.com/watch?v=OowFvnlWI90
    Youtube video
  • 13. Shaking at the surface of the Earth because of movement underground along a fault line/volcanic activity.
    earthquakes
  • 14. Determines size of an earthquake
    Uses seismic waves
    - A wave that travels through the Earth
    Richter magnitude scale
  • 15. 2.9 and lower Not felt
    3.0-4.9
    Felt but little damage
    5.0-10
    Felt and a lot of damage
    Richter magnitude scale
  • 16. Rocks and other material sliding down a mountain or cliff.
    landslides
  • 17. Rain- adds weight
    Erosion- base is removed
    Earthquakes- loosens material
    Volcanic eruption- flowing lava
    Humans:
    Mining
    Deforestation
    causes
  • 18. California Geological Survey - Kids Zone - Do Rocks Last Forever? . (n.d.). California Department of Conservation - Home . Retrieved February 27, 2011, from http://www.consrv.ca.gov/CGS/in
    Geography4Kids.com: Biosphere: Erosion. (n.d.).Rader's GEOGRAPHY 4 KIDS.COM. Retrieved February 27, 2011, from http://geography4kids.com/files/l
    Glaciers. (n.d.). Welcome To Kidskonnect. Retrieved February 27, 2011, from http://www.kidskonnect.com/subject-index/15-science/81-glaciers.html
    Earthquakes - Science for Kids!. (n.d.). Kidipede - History for Kids - Homework Help for Middle School. Retrieved February 27, 2011, from http://www.historyforkids.org/sci
    Kids.Net.Au - Encyclopedia > Richter scale. (n.d.).Kids.Net.Au - Encyclopedia. Retrieved February 27, 2011, from http://encyclopedia.kids.net.au/
    FEMA FOR KIDS: VOLCANOES. (n.d.). FEMA | Federal Emergency Management Agency. Retrieved February 27, 2011, from http://www.fema.gov/kids/volcan
    Landslides - Geology For Kids - By KidsGeo.com. (n.d.).Geography For Kids - By KidsGeo.com. Retrieved February 27, 2011, from http://www.kidsgeo.com/geology-for-kids/0071-landslides.php
    credits
  • 19. Picture credits
    Thienzieryung, “Landslide Area At Ranau-Kota Kinabalu Road” December 26, 2009 via Flickr, Creative Commons Attribution
    Marin Luff, “Earthquake damage- Bridge Street” February 22,2011 via Flickr, Creative Commons Attribution
    John Cooke, “Volcano” November 25, 2010 via Flickr, Creative Commons Attribution
    Fylkesarkivet I SognogFjordane, “Stalheim Hotel” circa 1910 via Flickr, public domain
    State Library of New South Wales, “Glacier, New Fortuna Bay, 1915” May 16, 2009 via Flickr, public domain
    Ivanvlee8, “DSCF0422a”, October 14, 2007 via Flickr, Creative Commons Attribution
    The Library of Congress, “Eroded Land”, circa 1939 via Flickr, Public Domain