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Parts of presentation
1. What is rock
2. Classes of rocks
3. The Rock cycle
1. What is rock
Rock is combination of minerals that makes up the Earth's crust.
Mineral  is  natural,  solid,  inorganic  material made up of elements.
2. Classes of rocks
2.1 ieneousrocks
2.2 sedimentary rocks
2.3 metamorphic rock
2.1 Isneous rocks
formed from hot melted
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intrusive
extrusive rocks - basalt
magma
rocks - granite
2.2 Sedimentary rocks
- sandstone
ck salt
2.3 Metamorohic rocks
changed from one kind of rock to another kind
from igneous rocks - gneiss
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3. The Rock cvcle
metamorphic, are part of a huge recycling process ROCK CYCLE.
Any class of rock can be changed into any other class of rock.
11
Igneous Rock (Granite)
Sediments
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Compression
Weathering, Erosion, Deposition

Sedimentary Rock (Limestone)
Heat& Pressure (Metamarphism)
Heat & Pressure (Metamorphisml
Melting
Melting
Metamorphic j#   (Gneiss)
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