Plate Boundaries
Describe a Transform Boundary
Where plates slip past each other.
pieces seperated by cracks
Plates
the ______________ of a plate determines which one comes out on top.
Density
breaks in the Earth's crust where rocks have slipped past eachother
Faults
Where plates come together.
The theory of plate tectonics states that Earth's plates are in ___________, __________________ motion.
slow and constant motion
Where do most divergent boundaries occur.
At mid-ocean ridges, where new crust is added.
Where plates move apart
Divergent Boundary
mantle
1. More dense
2. Less dense
Where pieces of Earth's crust diverge on land, a deep valley.
Rift Valley
How many centimeters do Earth's plates move per year?
1 to 12 centimeters
What kind of land formations form at convergent boundaries ?
Mountains ranges
During what process do divergent boundaries occur.
Sea-floor Spreading
Name five different plates that can be found on Earth.
Answers Vary :
Pacific plate, Indo-Australian Plate, Eurasian Plate, North American Plate, Antarctic Plate, South American Plate, African Plate, Arabian Plate, Eurasian Plate...
during __________, gravity pulls denser plate edges downward, into the mantle
Name a mountain formed by a convergent boundary
Everest / Andes
What can divergent boundaries cause to form on land?
Volcanoes!