Rocks & The Rock Cycle
The Rock Cycle Notes
Rocks - A solid, naturally occurring mineral
or mineral-like substance.
Notes
3
TYPES OF ROCKS:
1.) IGNEOUS
2.) SEDIMENTARY
3.) METAMORPHIC
1.

Formed when MAGMA or LAVA COOLS
AND HARDENS (SOLIDIFIES)
Examples: Obsidian & Granite

Key Words: All types of rocks can be
changes into igneous rocks by the
COOLING and MELTING of any rock.
2. SEDIMENTARY ROCKS
 Formed
when rocks are
WEATHERED and ERODED,
sediments get COMPACTED and
CEMENTED into solid rocks.
SEDIMENTARY ROCKS
Key Words:
WEATHERING and EROSION
COMPACTING and CEMENTING
SEDIMENTARY ROCKS
Examples: Shale & Limestone
3. METAMORPHIC ROCKS

Formed when existing rock is changes into new
rock by THE HEATING OF THE ROCK AND
PRESSURE FROM OTHER ROCKS AROUND
IT.
METAMORPHIC ROCKS
KEY WORDS:
Metamorphic rocks form under
extreme HEAT and PRESSURE.
+
3. METAMORPHIC ROCKS


All types of rock can be changed into
metamorphic by heat and pressure.
EXAMPLES: Soapstone & Gneiss
Rock Cycle