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Grade 11 Earth Science Guide

The document discusses different types of rocks including igneous, sedimentary and metamorphic rocks. It describes how each type forms and provides examples of physical properties used to identify common rock-forming minerals. Key minerals that form igneous and sedimentary rocks are also mentioned.

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Nazer M. Lacabo
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0% found this document useful (0 votes)
35 views8 pages

Grade 11 Earth Science Guide

The document discusses different types of rocks including igneous, sedimentary and metamorphic rocks. It describes how each type forms and provides examples of physical properties used to identify common rock-forming minerals. Key minerals that form igneous and sedimentary rocks are also mentioned.

Uploaded by

Nazer M. Lacabo
Copyright
© © All Rights Reserved
We take content rights seriously. If you suspect this is your content, claim it here.
Available Formats
Download as DOCX, PDF, TXT or read online on Scribd
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School RIZAL SPECIAL EDUCATION LEARNING CENTER, Grade Level Grade 11

INC.
Daily Lesson Log Teacher NAZER M. LACABO, LPT Learning COR 5- EARTH SCIENCE
Area
Teaching Dates Week 6 Quarter 1st Sem – Quarter 2

DAY 1 DAY 2 DAY 3

I. OBJECTIVES Identify common rock-forming minerals using their Identify and differentiate the types of igneous Identify and differentiate the types of sedimentary
physical and chemical properties; and rocks; and rocks; and

Identify the minerals important to society. Describe the origin and environment of formation Describe the origin and environment of formation
of igneous rocks. of sedimentary rocks.

A. Content Standards The learners demonstrate an understanding of the three main categories of rocks
B. Performance Standards The learners shall be able to make a plan that the community may use to conserve and protect its resources for future generations
C. Learning Competencies Identify common rock-forming minerals using their Identify common rock-forming minerals using Identify common rock-forming minerals using
physical and chemical properties their physical and chemical properties their physical and chemical properties

S11/12ES-Ib-5 S11/12ES-Ib-5 S11/12ES-Ib-5


II. CONTENT Rock-Forming Minerals Igneous Rocks Sedimentary Rocks
III. LEARNING
RESOURCES
A. References www. Quipper.com www. Quipper.com www. Quipper.com
1. Textbook’s pages Quipper module Quipper module Quipper module
B. Other Learning
Resources Quipper module Quipper module Quipper module

IV. PROCEDURES
A. Introduction
1. Recall basic information about Earth. What are
the different layers of Earth? What mainly covers Sedimentary Rocks
Earth’s surface?  Sedimentary rocks were formed from
 a. The third terrestrial planet is Earth, organic, mechanical or chemical
named from the Old English word eorthe sediments.
which means “land”. Of all the discovered
space objects in the universe, only Earth is  A process called lithification is where
known to have a life as we know it. harden sediments become sedimentary
rocks.
 b. It has three main layers: the crust, the Igneous Rocks
mantle, and the core.
 c. The outermost thin layer of Earth is the  Igneous rocks are formed from
crust. This is where living organisms. Soil solidification of magma or lava which
covers almost the entire surface of Earth. flows out from depth.

i. Soil is a mixture of broken rocks  Minerals such as quartz, feldspar,


and pyroxene, olivine, amphibole, and mica
minerals, organic matter, pore are the components of almost all types of
spaces, water, and air. igneous rocks.
 d. Soil is composed of different layers with
different composition and characteristics. Formation of Igneous Rock
Each layer of the soil is called a horizon.
 Igneous rocks are characterized by
i. Clay is a firm type of soil that is intergrowth of crystals and/or volcanic
composed of fine grains of rocks glass.
and clay minerals.
ii. Sand is another type of soil that is  Crystal size is directly proportional to
composed of loose and coarse the cooling rate of magma.
particles.
iii. Loam is another type of soil which Formation of Igneous Rock
is a mixture of sand and clay. It has  Big crystals are formed deep
particles that are finer than sand underground, while smaller crystals are
but a little bigger than clay. formed near the surface.
B. Discussion Formation of Sedimentary Rock
Bowen’s reaction series is a general model is  Diagenesis is a collective process where
created to show the progression of silicate sediments are lithified (becomes rock). It
crystallization at specific temperature. has four main parts:
 Compaction
 Cementation
The figure below shows an example of how to  Recrystallization
identify sedimentary rocks.  Chemical changes
(oxidation/reduction)

Minerals
 It is a naturally occurring, inorganic,
homogeneous solid, with a definite
chemical composition, and an ordered
crystalline structure.
Physical Properties of Minerals

 Color refers to certain wavelengths of light


that are reflected by a mineral and is
perceived by the observer.
 Streak is the color of the powdered form of
a mineral.
 Luster is the appearance of a mineral’s
surface and is dependent on how it reflects
light.
 Crystal habit is the characteristic shape in Types of Igneous Rocks
which a mineral grows and is a projection of
the mineral’s crystal structure.
 Cleavage is the tendency of some minerals
to break along flat surfaces.
 Fracture is the pattern in which the mineral
breaks aside from its planes of cleavage.
 Hardness is the resistance of the minerals to
scratching.
 Specific gravity is the ratio of a minerals’
weight to the weight of an equal volume of  An extrusive igneous rock forms when
water. magma or volcanic fragments erupt and
solidify on Earth’s surface which results Types of Sedimentary Rock
to very fine-grained rock with very small
crystals that could not be seen through  Clastic sedimentary rocks are made up
naked eye. of sediments from preexisting rocks.

 Biological sedimentary rocks are


lithified accumulation of dead organisms.
 Chemical sedimentary rocks form from
chemical precipitation
 Biological sedimentary rocks are lithified
accumulation of dead organisms.
 Chemical sedimentary rocks form from
chemical precipitation

Chemical Properties of Minerals


a. Define and  An intrusive igneous rock forms when
Discover magma crystallizes within the crust and is
composed of medium to coarse grains. It
is also known as a plutonic rock.

 Solubility refers the ability of a substance


to dissolve in a solvent at a specified
temperature.
 Melting point refers to the temperature at
which solid turns into liquid.
b. Develop and Naming of Igneous Rocks
Demonstrate Analysis of the Composition and Crystal  Igneous rocks can be named using the Across
Structure of Minerals binary system which is mainly based on
its texture and composition of the rock. 2. Rock made from evaporation
 Wet chemical analysis involves dissolving from shallow sea
a mineral in an acid and analyzing the Igneous rock is formed from solidification of 5. Pieces of rock, sand, and silt
solution. magma or lava which flows out from depth. 6. . A sedimentary rock formed by
rocks cemented by a mineral
Igneous rocks can be classified based on the
temperature-pressure condition. Down
1. Process where breaking down of
Bowen’s reaction series shows the progression of rocks into smaller pieces occurs
silicate minerals crystallization at specific 2. Process where sediments are
temperature condition. tightly pressed together.
3. Process where crystallization of
dissolved minerals and binding
the sediments together happens.
4. A natural cement that acts as a
Composition (silica content) glue to hold together sediment.

Texture

Felsic Intermedi Mafic


ate

extrusive rhyolite andesite basalt


(volcanic)
Spectroscopic techniques involve quantitative
analysis of mineral components depending on the intrusive granite diorite gabbro
light absorbance of the compounds. (plutonic)
Rock Forming Minerals
 Pyroxene minerals have a general
composition of XY(Al,Si)2O6 where X is
calcium (Ca) or magnesium (Mg) and Y is
either magnesium (Mg), iron (Fe), or
aluminum (Al).

 Amphibole has a general formula of W0-


1X2Y5Z8O22(OH)2 and has a dark color
with a Mohs hardness ranging from 5 to 6.
It is opaque and has a glassy luster.

C. Practice and
Feedback  A mineral is a naturally occurring, Write the name of the igneous rock based on Provide an explanation why the rigid components
inorganic, solid material that has definite the description given. of plants and animals are more likely preserved on
chemical composition. the rocks compared to the softer components.
 The physical properties of minerals are
color, streak, luster, crystal habit, cleavage, 1. high silica content, coarse-grained texture
fracture, hardness, and specific gravity. 2. low silica content, fine-grained texture
These properties are used for mineral 3. high silica content, fine-grained texture  Sedimentary rocks were formed from
identification. 4. equal amounts of dark and light colored organic, mechanical or chemical
 Solubility and melting point are chemical minerals, fine-grained texture sediments.
properties commonly used to describe a 5. low silica content, coarse-grained texture
mineral.
 A process called lithification is where
Write true if the statement is correct. Otherwise, harden sediments become sedimentary
write false. rocks.
1. A mineral is a naturally-occurring
substance.
2. Talc can scratch diamond.
3. A huge mineral has high specific gravity.
4. Bubbles that were formed after pouring an
acid to a mineral indicates that the sample is
a carbonate mineral.
5. Quartz is a good example of an
idiochromatic mineral.

D. Performance
Assessment

You were given two pink minerals (quartz and


Provide an explanation why the rigid components
calcite). Cite ways on how you could distinguish By just observing a rock sample, how would you of plants and animals are more likely preserved
each mineral. know if it is an intrusive or extrusive rock? on the rocks compared to the softer components.

Prepared by: Checked and approved by:

NAZER M. LACABO., LPT MA. ROSSANA H. FERNANDEZ, LPT


Subject Teacher SHS Coordinator

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