The%20Mid-Atlantic%20Ridge

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The Mid-Atlantic Ridge

• Lauren Winner

http//www.cliffshade.com/colorado/images/mid_atla
ntic.gif
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Where is it?

• The longest mountain range in the world, the
  Mid-Atlantic Ridge, runs right down the middle of
  the Atlantic ocean.
• It's the giant letter "C"
• between South America
• and Africa.

http//geomaps.wr.usgs.gov/parks/pltec/noaaMidAtla
nticRidgeSM.jpg
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What is it?
Submarine ridge lying along the floor of the
central Atlantic Ocean. It is a long mountain
chain running about 10,000 miles in a general but
curving north-south direction from the Arctic
Ocean to the southern tip of Africa.
What began as a small crack in the Earth's crust
is now the Mid-Atlantic Ridge, a giant undersea
mountain range. As magma rises to escape along
this ridge new crust is formed, sea-floors
spread, and continents drift around the globe.
http//www.daviddarling.info/images/mid-ocean_ridg
e_diagram.jpg
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How is it?
Formation of Ocean Crust http//www.wwnorton.com
/college/geo/egeo/flash/2_7.swfL
Sea Floor Spreading http//www.wwnorton.com/coll
ege/geo/egeo/flash/2_5.swf
http//sites.google.com/site/brooksscienceclasswor
k/_/rsrc/1264086132582/plate-tectonics-landforms/m
id atlantic ridge.jpg
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Why is it?

• Activity time!
• You will need to collect
• Wax paper
• 2 pieces of fruit roll up
• 1 spoonful of frosting
• (And consider washing your hands)

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Directions
http//www.windows2universe.org/teacher_resources/
snack_tect_overheads.html
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How does it?

• What did your cross section end up looking like?

The beginning of a mountain chain?
http//www.physicalgeography.net/fundamentals/imag
es/seafloor_spreading.gif
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Memory Game

• Cut out your cards from the sheet.
• Flip them over and arrange so you cannot see the
  words.
• Play Memory trying to match the vocabulary term
  with it's description!

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• Thank You!!