Plate tectonics

A plate boundary is a place where two tectonic plates meet. There are several types of tectonic plate boundaries. Which statement below shows the correct definition of a tectonic plate boundary?

• At a divergent boundary, plates separate.

• At a transform boundary, plates move apart.

• At a convergent boundary, plates slide past each other.

• At a divergent boundary, one plate sinks under another plate.

Identify this type of plate movement

• Divergent Boundary

• Convergent Boundary

• Transform Boundary

• None

Tectonic plates can be made of continental crust or oceanic crust, or a combination of the two. Besides their locations, how else are these two kinds of crust different?

• Continental crust is thinner than oceanic crust.

• Continental crust is thicker than oceanic crust.

• Tectonic plates made of continental crust are larger than plates made of oceanic crust.

• Tectonic plates made of continental crust are smaller than plates made of oceanic crust.

    __________       describes the large scale movement of the Earth’s lithosphere.

• Crust Displacement

• Mantle Movement

• Plate Tectonic

• None

Identify this type of plate movement

• Divergent Boundary

• Convergent Boundary

• Transform Boundary

• None

Tectonic Plates are the pieces of the ____________ that move around on top of the asthenosphere.

• Lithosphere

• Mantle

• Hard Rocks

• Both B and C

The illustration below shows some of Earth’s tectonic plates. The arrows indicate the directions in which some of these plates are moving. According to this map, where can you infer that mountains are being formed?

• A.between the Scotia Plate and the Pacific Plate

• between the Cocos Plate and the Caribbean Plate

• between the South American Plate and the African Plate

• between the North America Plate and the Antarctic Plate

The spread of molten rock comes up from through cracks and creates new oceanic crust

• Divergent Boundary

• Convergent Boundary

• Transform Boundary

• None

Two plates moving or sliding by each other.

• Divergent Boundary

• Convergent Boundary

• Transform Boundary

• None

Two plates collide

• Divergent Boundary

• Convergent Boundary

• Transform Boundary

• None