Rock Cycle

1. EARTH: THE
LIVING PLANET
LPCNSHS-CAA Campus
G11-STEM
Ms. Jasmine Nikki M. Versoza

2. LET’S UNLOCK SOME WORDS!
IIOACGNNR
Inorganic: may or may not contain carbon
Examples: salt and carbon dioxide

3. LET’S UNLOCK SOME WORDS!
Organic: molecules associated with living organisms and
contains carbon and hydrogen
Examples: DNA, sucrose, methane
CAOGNRI

4. LET’S UNLOCK SOME WORDS!
CNAUUTLAMOIC
Accumulation: gathering or piling

5. LET’S UNLOCK SOME WORDS!
TRELEPCOA
Percolate: ability of liquid to slowly pass through a filter

6. THE DIFFERENT TYPES OF ROCKS
Rocks
 They are mixture of one or more minerals, glass,
and sometimes organic matter.
 Some rocks are shiny, some are flat and dull,
others are compact.
 Analyzing these differences can help us
understand how they were formed.
 They can also be defined as a naturally occurring
mass of solid or inorganic materials that formed a
significant part of the earth’s crust.

7. QUESTION 1
What will happen if
rocks don’t exist?

8. Types of Rocks
Igneous Rocks
 Also known as the fire-formed rocks
 They are formed from solidified molten
magma, which comes from beneath the
earth’s crust.
 They can be classified according to
texture and mineral constituents.

9. Types of Rocks
RATE OF COOLING and SIZE OF CRYSTALS
 Slow cooling enables the components of the
rocks to travel at great distances resulting to
the formation of large crystals.
 Rapid cooling results to quick combination
of rock components, thus, forming a solid
mass of small inter-grown crystals.

10. Types of Rocks
Igneous Rocks
 Extrusive or Volcanic Rock – crystallizes at
the surface (rapid cooling process)
Examples: andesite, basalt, and tuff
 Intrusive or Plutonic Rock – crystallizes
beneath the surface (slow cooling process)
Example: granite

12. Types of Rocks
Sedimentary Rocks
 They are formed on or near the Earth’s
surface through the accumulation or
deposition of mineral particles.
 Particle size is very important to the
identification of sedimentary rocks.

14. Types of Rocks
Weathering and Erosion
 Processes that include the effects of wind
and rain, which slowly break down large
rocks into smaller ones.
 These processes transform boulders and
mountains into sediments, such as sand
or mud.

15. Types of Rocks
Lithification – the formation of rocks after
undergoing a series of compaction and cementation
of component parts.
 Compaction – as the sediments accumulate, the
pore spaces in between particles are reduced and
pressed closer to one another.
 Cementation – materials are carried in solution by
water which is percolating through the pore spaces
between particles, thus, filling up the open spaces.

16. Types of Rocks
Metamorphic Rocks
 They undergone transformation
through heat, pressure, or chemical
change.
 As a result, the texture and mineral
composition of the rock has been
changed.

17. Types of Rocks
Metamophism
 Low grade metamorphism – rock is subjected
to pressure and temperature with slight
lithification.
 High grade metamorphism – rock is subjected
to extreme conditions, that is, close to melting
it.

19. Rock Cycle
 The rock cycle explains how one type of rock
can be transformed into another in nature.
 Igneous rock can change into sedimentary rock or
metamorphic rock.
 Sedimentary rock can change into metamorphic
rock or igneous rock.
 Metamorphic rock can change into igneous rock or
sedimentary rock.

20. z
Rock Cycle
magma
sediments
Igneous Rock
Metamorphic Rock Sedimentary Rock
heat and pressure

21. ROCK COMPOSITION
 Granite is an igneous rock that contains
minerals biotite, quartz and felspar. If 10% of
this rock is biotite and 35% is quartz, what
percentage of the rock is feldspar?
 Limestone is a sedimentary rock containing
aragonite and calcite. If 95% of this rock is
calcite, what percentage is aragonite?

22. UP NEXT…
 Answer your learning activity
worksheet (LAW) week 4.
 Comment on my post in our fb group.