Plate Motion Vocabulary
These are examples of landforms.
What are volcanoes, ridges, mountains, channels, or sand dunes?
This is how plates move relative to each other at a convergent boundary.
What is toward or on top of each other?
This is how plates move relative to each other at a divergent boundary.
What is away or apart from each other?
Fill in the blank: Earth’s outer layer is made of hard, solid rock divided into sections called ________.
Plates
This is the layer of soft, solid rock underneath Earth’s plates.
What is the mantle?
This type of landform is created when two plates converge.
What is a trench?
This type of landform is created when two plates diverge.
What is a ridge or mid-ocean ridge?
What is the correct answer? Earth’s plates include continents and seafloor. Continents are (thicker or thinner) than the seafloor plates.
Thicker
This is the name of the layer of Earth’s hard, solid rock that is underneath the soil, vegetation, and water.
What is the outer layer?
This type of geologic event most commonly occurs at convergent boundaries.
What are volcanic eruptions or volcanoes?
This is the most common geologic event that occurs at divergent boundaries.
What is an earthquake?
Fill in the blank: At ___________ plate boundaries, one plate moves underneath the other plate and sinks into the mantle.
Convergent
Picture 3
https://docs.google.com/presentation/d/1GUJrvhwTKib2q_uDuy2xXmgA-d4ys50LHcCthy4zfFI/edit?usp=sharing
Under both 1 and 2
This is the type of boundary that creates rifting.
What is a divergent boundary?
As one plate subducts under the another, this happens to the lower plate.
What is it sinks into the mantle, removing rock from the Earth's outer layer?
As new rock forms at a divergent boundary, where does it go?
It forms a ridge and then spread out on the sea floor.
Fill in the blank: At __________ plate boundaries, the rock rises from the mantle and hardens, adding rock to the edge of the plates
divergent
Picture 4
https://docs.google.com/presentation/d/1GUJrvhwTKib2q_uDuy2xXmgA-d4ys50LHcCthy4zfFI/edit?usp=sharing
Cross sectional diagram or cross-section
The name of the extinct reptile that lived about 300 million years ago whose fossils were found on Africa and South America.
What is the mesosaurus?
Why do we know there is a convergent boundary on the western coast of South America?
Why do we know that the South American plate and African plate are diverging (2 pieces of evidence)
What are the fossils of the mesosaurus and the mid-Atlantic ridge (or mid-ocean ridge)?
The plates of Earth’s outer layer move on top of a soft, solid layer of rock called the _______.
Mantle
Picture 5
https://docs.google.com/presentation/d/1GUJrvhwTKib2q_uDuy2xXmgA-d4ys50LHcCthy4zfFI/edit?usp=sharing
The water should be mantle. The plate that goes under the other destroys in the mantle. The ocean is always above the crust.