Vocabulary 1
one of the very large sections of har, solid rock that make up Earth's outer layer
plate
something we observe to be similar over and over again
pattern
What happens to Earth's plates during an earthquake?
Plates move, which cause earthquakes
How are plate boundaries and earthquakes related?
Earthquakes occur at plate boundaries.
Besides earthquakes, what is the other type of activity we see at plate boundaries?
Volcanic activity
diagram that shows what the inside of something looks like
cross-section
place where two plates meet
plate boundary
Give me an example of a pattern
Answers vary
What type of boundary creates trenches?
Convergent Boundary
Can we feel plate movement when there isn't an earthquake? Why or why not?
No. The rate of movement is too low.
underwater mountain range formed when two plates move apart
mid-ocean ridge
how often or fast something happens
rate
What is the land like underneath Earth's surface?
Earth's outer layer is made of hard, solid rock
Remember the physical model we made. What do the towels represent? The area between the chairs? The area under the chairs?
Towels: plates
Between the chairs: plate boundary
Under the chairs: Mantle
What did the GPS evidence show?
GPS measurements show that the South American and African Plate are currently spreading apart.
moving toward the same place
convergent
moving apart in different directions
divergent
Describe the crust and the mantle.
Crust: hard, solid rock
Mantle: soft, solid rock
What type of boundary is between the South American and African plate? How do we know?
Divergent boundary. Mid-ocean ridge is found there and only at divergent boundaries.
When working on reconstructing Gondwanaland, why did you cut away the hard, solid rock that formed between the landmasses?
That hard, solid rock did not exit when the landmasses were all together.
Earth's outermost layer of hard, solid rock that is underneath the soil, vegetation, and water
outer layer
layer of soft, solid rock underneath Earth's plates
mantle
Use two vocabulary words in a sentence.
Answers may vary.
Use two vocabulary words in one sentence.
Answers may vary.
Use two vocabulary words in a sentence.
Answers vary.