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WorksheetsRock Unit
Total questions: 27
Worksheet time: 20mins
How are igneous rocks classified?
origin, texture and mineral composition
origin, color and texture
texture, color, and mineral composition
by their grains
Where is magma found?
inside Earth
on the surface of the Earth
Where is lava found?
inside Earth
on the surface of the Earth
How do extrusive igneous rocks form?
from lava that erupted onto Earth's surface
from magma that hardened beneath Earth's surface
How do intrusive igneous rocks form?
from lava that erupted onto Earth's surface
from magma that hardened beneath Earth's surface
Fine-grained igneous rocks with small crystals formed from
rapidly cooling lava
slowly cooling magma
Coarse-grained igneous rocks with large crystals formed from
rapidly cooling lava
slow cooling magma
Is this igneous rock, obsidian, fine-grained or coarse-grained?
fine-grained
coarse-grained
Diorite is an intrusive igneous rock. What does this tell you about it?
it was formed from lava that erupted onto Earth's surface
it was formed from magma that hardened beneath Earth's surface
it was formed from rapidly cooling lava
What are the types of sedimentary rock?
Igneous; Metamorphic; Sedimentary
Clastic; Igneous; Sedimentary
Chemical; Clastic; Inorganic
Organic; Clastic; Chemical
Chemical rocks are...
Made from heat
Made when water evaporates and minerals crystallize
Made from dead animals/plants
Made from pieces of other rocks
Organic rocks are...
Made from heat
Made when water evaporates and minerals crystallize
Made from the remains of dead animals/plants
Made from pieces of other rocks
Which formation process do most sedimentary rocks follow?
cementation, compaction, deposition, erosion
erosion, compaction, cementation, deposition
erosion, deposition, compaction, cementation
How are clastic rocks formed?
minerals dissolve in a solution & then crystallize
rock fragments are squeezed together
remains of plants & animals are deposited in thick layers
