Intrusive And Extrusive Igneous Rocks
Intrusive igneous rocks cool from magma slowly in the crust. They have large crystals. Extrusive igneous rocks cool from lava rapidly at the surface. They have small crystals.
CK-12 (Middle School)
RST.2 - Main Ideas, RST.1 - Analysis & Evidence, RST.4 - Key Terms
DEPTH OF KNOWLEDGE (DOK) LEVELS:
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