Tectonic Plates 1
In this type of boundary, plates are moving towards each other.
Convergent plate boundaries
In this type of plate boundary, plates are moving apart
Divergent plate boundaries
The thinnest part of the earth
The crust
In this type of boundary, plates slide against each other
Transform plate boundaries
What is the name of the theory that states the earth's crust is made of large sections moving over the mantle.
The theory of Plate Tectonics or Continental Drift.
The name of the large pieces of Earth's crust that move
Tectonic Plates
What is the name of the layer of the Earth that lies directly beneath the crust
The mantle
This happens to molecules as they heat up
They rise
The 2 types of crust
Continental and Oceanic.
This scientist discovered the theory of Seafloor Spreading
Henry Hess
What magma becomes when it cools down
It becomes lava then igneous rock.
Convection currents occur here
In the mantle or asthenosphere
This causes the plates to move
The convection currents in the mantle.
Molten rock is called
Magma
2.5 cm
This ocean was created as North America moved away from Europe
The Atlantic Ocean
Scientific equipment used to make GPS function
Satellites
Convection
When a plate slides under another is called
Subduction
Tectonic Plate where Puerto Rico is located:
Caribbean Plate
A continental plate converging with a continental plate creates this
Mountains
The core is made up of what 2 elements
Iron and Nickel
This scientist first proposed the theory of Continental Drift
Alfred Wegener
Layer of the earth located in the mantle:
Asthenosphere
This is the name given to the supercontinent that once existed
Pangaea