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What is a supercontinent?
When nearly all of Earth's landmasses come together to form a a giant landmass.
How long ago did Earth's landmasses arrange in Pangea?
300 million years ago
How many supercontinents have existed before Pangea?
2
What is Amasia?
A predicted super continent.
Where do scientists predict Amasia will be located?
North Pole
Why do supercontinents form?
The landmasses on Earth move a few centimeters each year.
What evidence indicates the 7 continents formed Pangea?
The same dinosaur/amphibian fossils, desert and basalt have been found on multiple continents.
What supercontinent is this model showing?
Pangea
What supercontinent is this model showing?
Amasia
When may the supercontinent Amasia form?
In 250 Million Years
What are tectonic plates?
Giant land masses that move around Earth.
What is a convergent boundary?
Land masses that crash into each other.
What is a mid ocean ridge?
Underwater mountain system
What is a deep sea trench?
Space created by subduction at 2 convergent boundaries
What is subduction?
Older heavier plates sliding under young lighter plates
What is a divergent boundary?
Two land masses moving away from each other
