Magma Landforms
Silica
Rock Cycle
100
What is a lava plateau?
What is lava flowing out of cracks in the crust called fissures, thin runny lava.
100
Describe low silica lava.
What is thin,runny and makes quiet explosions.
100
What are the three main rock types?
What is igneous, metamorphic, sedimentary.
200
What is a shield volcano?
What contains a non-explosive, low in silica lava/magma with gentle sloping sides.
200
Describe high silica lava.
What is thick,sticky, and makes explosive eruptions.
200
What does the rock cycle do?
It builds, destroys, changes rock.
300
What is a composite volcano?
What is made up of alternating rocks and hardened lava, also known as a stratovolcano, most common.
300
What does silica mean?
What is material found in magma determines quiet or explosive eruptions.
300
What are examples of igneous rocks?
What is granite and basalt.
400
What is a cinder cone volcano?
What contains explosive eruptions, high silica lava/magma. With steep sides and found in clusters.
400
What is an example of thick and thin lava?
What is pahoehoe (thin) aa (thicker)
400
How does metamorphic rock form?
By great heat and pressure changing rock or other minerals into this rock.
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