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Transcript 
The Theory of Plate
Tectonics
Chapter 1.5
by Donnie Kirrane, Chloe Frantzis, Zoë Heywood and Natalie Harder
Yay! It’s
science!
Important Vocabulary
❏ Plate- Parts of the lithosphere broken up into different
segments
❏ Scientific Theory- A well-tested concept that covers a
wide range of observations
❏ Plate Tectonics- A theory that explains the
movement, formation and subduction of Earth’s plates
❏ Fault- breaks in Earth’s crust where rocks have slid
past each other along boundaries
❏ Rift Valley- A deep valley that forms along a divergent
boundary
Divergent Boundaries
A place where two plates move apart or
diverge
★ When two continental plates diverge it makes a rift valley
★ When two oceanic plates diverge they
create mid ocean spreading
http://joberts11.wikis.birmingham.k12.mi.
us/file/view/drk002517.jpg/291112875/drk002517.jpg
Convergent Boundaries
A place where two plates collide or
converge
★ Continental plates- creates mountain ranges
★ Oceanic plates- creates mid-ocean ridges
★ Oceanic and Continental platesoceanic subducts under the continental
http://tasaclips.
com/illustrations/Convergent_Boundary.jpg
Transform Boundaries
The place where two plates slip past each
other moving in opposite directions
★ Continental plates- causes an earthquake
★ Oceanic plates- causes under water earthquake
http://hoopmanscience.pbworks.
com/f/1348757835/transform_20bou
Key Concepts
● What is the theory of
plate tectonics?
● What are the 3 types
of plate boundaries?
http://www.kidsgeo.com/images/plate-boundaries.jpg
The theory of plate tectonics
explains the formation, movement,
and subduction of Earth’s plates.
Divergent Boundaries, Convergent
Boundaries, Transform Boundaries.
Credits
Home Page
●
http://ecx.images-amazon.com/images/I/515zIalZYbL._SY300_.jpg
Divergent Boundaries
●
http://joberts11.wikis.birmingham.k12.mi.us/file/view/drk002517.jpg/291112875/drk002517.jpg
Convergent Boundaries
●
http://tasaclips.com/illustrations/Convergent_Boundary.jpg
Transform Boundaries
●
http://hoopmanscience.pbworks.com/f/1348757835/transform_20boundary.jpg
Key concepts
●
http://www.kidsgeo.com/images/plate-boundaries.jpg
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