The rock cycle

The Rock Cycle


So…what is the difference between a rock
and a mineral?
A mineral is a naturally formed solid
material with a crystal structure.

Quartz

Biotite mica

Feldspar


So…what is the difference between a rock
and a mineral?
A rock is a solid mixture of
crystals of one or more minerals.

Granite:
Quartz + Feldspar + Biotite mica


The Three Types of Rock
Igneous

Obsidian

Pumice

Granite

Form when lava or magma cools and
hardens to form mineral crystals.


The Three Types of Rock
Sedimentary

Sandstone

Shale

Conglomerate

Form when grains of rock (sediments)
collect and harden into new rocks.


The Three Types of Rock
Metamorphic

Schist

Gneiss

Quartzite

Form when rocks change as they are
heated or squeezed.

Paths Through the Rock Cycle
Sedimentary Rock

Igneous
Rock

in g
r
he sion
t
e a E ro
W
&

He
Pr at &
es
su
re

We
at h
& E erin
ros g
ion

Cooling

Metamorphic
Rock

Melting

Magma/Lava
Rock cycle website


Rock Cycle Song
(Sing to the tune of "Row, Row, Row Your Boat")

SEDIMENTARY rock
Has been formed in layers
Often found near water sources
With fossils from decayers
Then there's IGNEOUS rock
Here since Earth was born
Molten Lava, cooled and hardened
That's how it is formed
These two types of rocks
Can also be transformed
With pressure, heat and chemicals
METAMORPHIC they'll become.