Rocks
Vocabulary
Plate Motion
Rock Strata
Mixed Bag
1
Name 2 types of rock.
Sedimentary and Igneous
(Metamorphic)
1
the process of sediment being buried and pressed together
compaction
1
What is Earth's outer layer made of under the ocean?
Hard, solid rock (hard, solid rock EVERYWHERE)
1
determining the relative order of past events without necessarily determining their absolute age (i.e., estimated age).
Relative Dating
1
The youngest rock formation in a layered sequence of rocks is at the...
top
2
Which processes are used to make a sedimentary rock?
compaction and cementation
2
One of the very large sections of hard, solid rock that is underneath the soil, vegetation, and water
Plate
2
At a _____________________________ plate boundary, the plates move apart in opposite directions.
Divergent
2
the scientific organization of Earth’s 4.6 billion year history
the geologic time scale
2
When __________________________ is compacted and cemented together, it forms __________________________ rock.
Sediment, sedimentary
3
Magma must _______________ to become an igneous rock.
Cool
3
The place where two plates meet
Plate boundary
3
What is the mantle made of?
Soft solid rock, magma (lava)
3
In a layered sequence of rocks, the oldest rock is
at the bottom
3
It takes _________________ for Earth’s plates to travel large distances.
Milllions or Billions of years, A long time
4
What causes rocks to be different types?
How they formed
4
the layer of soft, solid rock underneath Earth’s plates
mantle
4
At a _______________________ plate boundary, the plates move toward each other.
Convergent
4
Which is the oldest part of the diagram?
Mudstone
4
Identify each diagram that represents a divergent boundary.
A and C
5
What material makes an igneous rock
magma
5
the rock type formed when magma cools and becomes solid
Igneous Rock
5
Earth’s plates travel at a rate of ____________________ per year.
Several centimeters, 2-17 centimeters
5
Which is the youngest part of the diagram?
Igneous intrusion X
5
Which continents moved the most from Pangea to their present day locations on the planet?
Antartica, Australia, India