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Grade 8 Science: Geologic Processes & History of Earth

Grade 8 • Science • 10 minute practice

Name
Date
1.
The ___ cycle describes how rocks transform among types.
2.
___ rock forms from cooled magma or lava.
3.
___ rock forms from compressed sediments.
4.
___ rock forms from heat and pressure on existing rock.
5.
___ is the theory that Earth's lithosphere is divided into moving plates.
6.
At divergent boundaries, plates move ___.
7.
At convergent boundaries, plates move ___.
8.
Earthquakes often occur at ___.
9.
Describe the rock cycle in words.
10.
What evidence supports plate tectonics?
11.
What is subduction?
12.
How do fossils indicate past environments?

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