What type of map is this?
This?
What type of map is this?
This?
How about this?
And this?
INTERNAL FORCES THAT SHAPE THE EARTH Chp. 2 Section 3
Learning goal: Explain plate tectonics and the effects they have on our planet
Continental Drift Theory All continents had once been joined together in a supercontinent called Pangaea, but slowly drifted apart. Evidence: the same crocodile fossils were found in Brazil and South Africa Evidence: continents can fit together like puzzle pieces
Plate Tectonics Tectonic plates=enormous moving pieces of the earth s lithosphere Continents split apart due to the movements of tectonic plates
4 Types of Plate Movement
http://earthquake.usgs.gov/learn/animations/animation.php?flash_title=divergent+boundary&flash_file=divergent&flas h_width=500&flash_height=200 1. Diverging Plates spread apart *The space between is filled with magma, which forms underwater mountain ranges
An effect of divergent plate movement is a VOLCANO! Ring of Fire: zone around the Pacific plate known for multiple volcanic eruptions/earthquakes
2. Convergent :Subduction One plate moving under another * sub =under, like submarine http://earthguide.ucsd.edu/eoc/teachers/t_te ctonics/p_subduction.html
3. Convergent: Collision Plates come together * con =to come together like con vention *When the plates collide, they create large mountain ranges like the Himalayas.
World s tallest: Mount Everest
4) Transformation Plates slide past one another When plates slide past one another at a fault, like the San Andreas, it can cause an earthquake Fault= crack/joint in the earth
Earthquakes Caused when tectonic plates grind or slip Richter Scale: scale that rates earthquakes (1=10) Haiti 7.0
Tsunamis A giant wave caused by an earthquake on the ocean floor. Indian Ocean 9.1 BBC NEWS World The tsunami disaster explained
External Forces Shaping the Earth Chp. 2 Section 4
Learning Goal: Describe mechanical and chemical weathering. Explain how water, wind, and glaciers affect the development of landforms Identify the basic components of soil
Weathering Processes that change the characteristics of rocks.
Mechanical Weathering Processes that break rock into smaller pieces. Does not change composition of rock just its size
Chemical Weathering composition of the rock is changed due to elements in the water and air which decompose the rock Ex: when iron rusts
Erosion= wearing away of rock, land or soil by wind, water, ice or gravity
Water Erosion One form of water erosion occurs when water flows in a stream or river When a river enters the ocean, the sediment is picked up during flow and is deposited in a fanlike landform called a delta
Wind Erosion The wind picks up and transports sediment in different locations Deposits of loess, or wind blown silt or clay, are found across the world.
Glaciation is the changing of landforms by slowly moving glaciers Glacial Erosion
Create a newspaper article! Pick an event: earthquake, volcano eruption, tsunami Can be more than one! (i.e. earthquake & tsunami) Explain exactly what happened. Be specific! Tell where this happened, tell what type of plate movement it was and explain how those plates move, explain the damage of the disaster. Draw a picture to explain how this happened (plate movement arrows) and a picture of the damage it caused.
Article Title Author Draw a picture to explain how this happened (illustrate the plate movements) Draw a picture of the damage it caused Keep it appropriate Caption explaining the above picture Date Pick an event: earthquake, volcano eruption, tsunami Can be more than one! (i.e. earthquake & tsunami) Explain exactly what happened. Be specific! Tell where this happened, tell what type of plate movement it was and explain how those plates moved, explain the damage of the disaster. At least 10 sentences, be creative but still cover the content!