Sedimentary Rock Classification

Sedimentary Rock Classification

The main types of sedimentary rocks are clastic or chemical. Some sedimentary rocks are a third type, organic. Clastic sedimentary rocks are made of sediments. Chemical sedimentary rocks are made of minerals that precipitate from saline water. Organic sedimentary rocks are made from the bodies of organisms.

CK-12 (Middle School)

ESSENTIAL QUESTION:

How do scientists classify sedimentary rocks?
STANDARDS:
RST.1 - Analysis & Evidence

DEPTH OF KNOWLEDGE (DOK) LEVELS:

2,3
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