G11-Earth Science Week 3 Lessons ( Important Minerals to Society & Ore Minerals)

Summary

This Earth Science class for grade 11 students delves into the significance of minerals in society, covering their use in everyday life and their extraction and processing methods. The lesson highlights the importance of minerals in household items, dental health, construction, and power plants. It also explains the two primary mining methods: surface and underground mining, and the various techniques used, including open-pit, strip, and dredging. The video emphasizes the need for careful resource management to ensure sustainability for future generations, encouraging students to consider their role in preserving mineral resources.

Takeaways

• 📚 The class is for Grade 11 Earth Science students covering lessons five and six in week three.
• 📝 Students are encouraged to submit their outputs on time and participate in the group page and Google Classroom.
• 🏠 Lesson five discusses important minerals in society, highlighting their presence in everyday items like toothpaste, makeup, aluminum kitchenware, and copper wiring.
• 🦷 In dental health, tools made of iron and carbon are used, along with gypsum for casts and titanium for dental transplants.
• 🏗️ Construction materials include iron, steel, limestone, granite, marble, and glass, which are all derived from specific minerals.
• 🚗 Cars are made using minerals like nickel, copper, and various alloys, emphasizing the importance of minerals in manufacturing.
• ⚒️ Lesson six focuses on how minerals are found, mined, and processed for human use, starting with the definition of an ore.
• 🔨 There are two main mining methods: surface mining for easily accessible minerals and underground mining for deeper deposits.
• 💣 Mining techniques include open pit mining, strip mining, and dredging, each suited for different types of mineral deposits.
• 🧪 The mineral processing steps include sampling, analysis, crushing, grinding, concentration, and water treatment to extract valuable elements.
• 🌳 The script ends with a reflection on the importance of preserving mineral resources for future generations and the role of each individual in this effort.

Q & A

What are the main topics covered in the Earth Science class for Grade 11 in week three lessons five and six?

The main topics covered in the Earth Science class for Grade 11 in week three lessons five and six are important minerals to society and energy resources, including their use in everyday life, dental health, construction, and power plants, as well as the process of how minerals are found, mined, and processed for human use.

What is an example of a mineral found in toothpaste?

Fluorite is an example of a mineral found in toothpaste.

Which minerals are used in makeup products?

Talc is the mineral commonly found in makeup products.

What are the main minerals used in the construction of a house?

The main minerals used in the construction of a house include aluminum for kitchen materials, copper for wirings, iron and carbon in steel, limestone for concrete, and granite, marble, and quartz for flooring and glass.

What minerals are used in dentistry tools and dental transplants?

In dentistry, tools comprise iron and carbon, casts comprise gypsum, and titanium is used in dental transplants.

What is an ore and why is it important?

An ore is a natural occurrence of rock or sediment containing enough economically important elements or metals to be extracted for profit. It is important because it is the source of valuable minerals and metals used in various industries.

What are the two main methods of mining minerals?

The two main methods of mining minerals are surface mining, which is used to extract minerals near the surface of the earth, and underground mining, which is used to extract minerals that are deeper below the surface.

Why is underground mining considered more dangerous than surface mining?

Underground mining is considered more dangerous than surface mining because miners work in tunnels deep within the earth, making them susceptible to dangers such as cave-ins and the use of explosive devices, which can be hazardous in the event of an earthquake or other natural disasters.

What are the different types of surface mining mentioned in the script?

The different types of surface mining mentioned in the script are open pit mining, strip mining, and dredging.

What is the primary step in processing minerals after mining?

The primary step in processing minerals after mining is sampling, which involves the removal of a portion of the ore for analysis to determine the presence of valuable minerals or components.

What is the final step in the mineral processing sequence described in the script?

The final step in the mineral processing sequence described in the script is water treatment, which involves filtration, sedimentation, and drying to separate valuable minerals from the suspension.

What is the message the teacher wants to convey to the students regarding the preservation of mineral resources?

The teacher wants to convey that the preservation of mineral resources is crucial for future generations, and it requires a delicate balance of utilizing the resources for present needs while ensuring their availability for the future. The teacher encourages students to think of ways they can contribute to this preservation.

Outlines

00:00

🌏 Introduction to Earth Science and Mineral Importance

This paragraph introduces the Earth Science class for grade 11 learners, specifically focusing on lessons five and six in week three. The teacher welcomes students back and praises them for meeting deadlines for assignments. The lesson's main theme is the significance of minerals in society, with an emphasis on their presence in everyday household items like toothpaste, makeup, aluminum kitchenware, and copper wiring. The teacher also touches on the use of minerals in dental health, construction, and power plants, highlighting the role of minerals like fluorite, gypsum, and titanium. The paragraph concludes with an assessment task for students to complete, referencing page 11 of their module.

05:02

🏭 Understanding Mineral Processing and Mining Methods

The second paragraph delves into the extraction and processing of economically valuable minerals, known as ores. It explains that ores are rocks or sediments containing enough minerals to make mining profitable. The paragraph outlines two primary mining methods: surface mining, which extracts minerals close to the earth's surface without deep excavation, and underground mining, which is more common in the Philippines and involves deeper exploration. The teacher discusses the dangers of underground mining, especially during natural disasters like earthquakes. The paragraph also covers various types of surface mining, including open pit mining, strip mining, and dredging, each with its specific applications and environmental impacts.

10:04

🔬 Steps in Mineral Processing and the Call for Preservation

The final paragraph discusses the detailed steps involved in mineral processing, starting with sampling to represent the entire deposit for analysis. It emphasizes the importance of analyzing the chemical composition and particle size of the ore. The paragraph then describes the process of crushing and grinding the ore into a powder, followed by concentration to separate valuable minerals from the waste. The final step, watering, involves converting the concentrated minerals into usable forms through filtration, sedimentation, and drying. The teacher ends the lesson with a reflective question for students on how they can contribute to the preservation of mineral resources, highlighting the importance of sustainable use and management of these resources for the benefit of future generations. The 'code of the day' reinforces the message of responsible resource management.

Keywords

💡Minerals

Minerals are naturally occurring, inorganic substances with a definite chemical composition and crystal structure. They are essential to society as they are used in various applications such as construction, electronics, and healthcare. In the video, the importance of minerals is highlighted by discussing their presence in everyday items like toothpaste, makeup, and kitchen utensils, as well as their use in building materials and dental health.

💡Fluorite

Fluorite, also known as fluorspar, is a mineral composed of calcium fluoride. It is used in the video as an example of a mineral found in toothpaste, which helps in strengthening teeth and preventing dental cavities. The mention of fluorite underscores the relevance of minerals to personal health and hygiene.

💡Aluminum

Aluminum is a lightweight, silvery-white metal that is widely used in various industries, including construction and manufacturing. In the context of the video, aluminum is mentioned as a material used in kitchen utensils, emphasizing its role in everyday life and the household.

💡Copper

Copper is a reddish-brown metal known for its high thermal and electrical conductivity. It is used in the video to illustrate the minerals found in wiring within homes, highlighting its importance in electrical systems and infrastructure.

💡Dentistry

Dentistry refers to the branch of medicine that focuses on the prevention, diagnosis, and treatment of oral diseases. The video discusses the use of minerals like iron, carbon, gypsum, and titanium in dental tools, casts, and implants, demonstrating the application of minerals in healthcare and medical procedures.

💡Construction

Construction involves the process of building structures, such as houses and commercial establishments. The video mentions the use of minerals like iron, carbon, limestone, granite, marble, and quartz in construction materials, emphasizing the foundational role of minerals in the built environment.

💡Ore

Ore is a naturally occurring solid material from which a metal or valuable mineral can be profitably extracted. The video defines ore and discusses its economic importance, extraction through mining, and subsequent processing to extract valuable elements, which is central to the theme of mineral resources and their utilization.

💡Surface Mining

Surface mining is a method of extracting minerals near the Earth's surface. The video explains that this method is used when ores are close to the surface, requiring less excavation and making it a more accessible and less costly form of mining compared to underground mining.

💡Underground Mining

Underground mining involves digging tunnels or shafts into the Earth to reach minerals located beneath the surface. The video points out that this method is more dangerous and expensive than surface mining, but it is necessary for accessing minerals that are not available through surface mining.

💡Processing

Processing in the context of the video refers to the series of steps taken to convert mined ores into usable products. This includes sampling, analysis, crushing, grinding, concentration, and beneficiation. The video emphasizes the importance of processing in extracting valuable minerals from ores and transforming them into materials that can be utilized by society.

💡Preservation

Preservation in the video's context refers to the careful management and conservation of mineral resources to ensure their availability for future generations. The video challenges students to consider how they can contribute to the preservation of mineral resources, highlighting the importance of sustainable practices in resource management.

Highlights

Introduction to Earth Science for Grade 11 students, focusing on lessons five and six.

Emphasis on the importance of submitting outputs and activities on time.

Lesson five discusses the significance of minerals in society and their uses in everyday life.

Examples of household minerals include fluorite in toothpaste and aluminum in kitchen materials.

Dental health tools are made from minerals like iron, carbon, and gypsum.

Minerals used in construction include iron, carbon, limestone, and quartz.

Energy resources, such as uranium in nuclear power plants and coal in coal power plants, are highlighted.

Introduction to the assessment task on page 11, requiring students to refer to their module.

Lesson six delves into the extraction and processing of ore minerals for human use.

Definition of an ore as a natural occurrence of rock or sediment with economically important elements.

Description of the two primary mining methods: surface mining and underground mining.

Surface mining techniques such as open pit mining, strip mining, and dredging are explained.

The primary steps in processing minerals, including sampling, analysis, crushing, grinding, and concentration.

The importance of filtration, sedimentation, and drying in converting minerals into usable forms.

A reflective question posed to students on how they can contribute to the preservation of mineral resources.

The 'Code of the Day' emphasizes the balanced utilization and preservation of natural resources for future generations.

Encouragement for students to engage in honest learning and self-assessment rather than seeking answer keys.

Closing remarks with a reminder for students to participate in the next learning video and to strive for excellence.

Transcripts

and i'm back grade 11 learners

welcome to our class again earth science

grade 11.

so we are now in week three lessons five

and six

i hope you are doing good and thank you

for keeping up with the deadline in the

submission of our outputs

so uh hoping that you have submitted

already this one and two outputs in our

group page

and also for the online learners

i hope you have already attached your

activities and outputs in your google

classroom

so for this week we are going to tackle

lessons five and six so in lesson five

it's talking about the important

minerals to the society

[Music]

so what do you see in this picture

what are we trying to portray in this

picture

so basing from our lesson

we have the different important minerals

in the society so

if we related to our topic today this

could also signify what are these

[Music]

minerals that we use inside our

home

from our bedroom kitchen in our sala and

even the components the materials that

we use in building a house so

they all signify the different minerals

that we use in

our house

so what are these important minerals in

the household some of the examples are

like the toothpaste that we use every

day

yeah has the fluorite mineral

and also the makeup for some women who

actually use makeup

the towel

is also present in our makeups

and also for

some of the materials that we use in the

kitchen yeah they are made of

aluminum and the wirings that we have

inside our hole

has also the copper

[Music]

and how about in dental health okay

dentist what are they using what

minerals are they using in order to do

their jobs

so for the first one the tools that they

use

in dentistry

comprise actually iron and carbon

okay

while the cast that they use also

comprises the gypsum

and then

the titanium in

making a

transplant

with the teeth

and the third one is made up of iron

also and carbon

for some of the materials that we use in

dentistry

and also in constructing buildings

okay

what are the components what are the

important minerals in the construction

first one

yeah the iron and carbon present in

the

iron and steel

and the first next one is the limestone

the lime and the chalk

for those

that are using the concrete

the concrete that we use in building a

certain

establishment

and the third one we have the flooring

we use this what we call

tiles that are made of granite and

marbles

and also the glass okay some buildings

that are made up of glass

so they are

using the quartz and the silicon

uh the important minerals in power

plants so

in the first picture we had here

the nuclear power plants which actually

uses the uranium mineral and of course

the coal power plant is also cold

and in making cars

the minerals that are used here are the

nickel the copper and the leafy

i want you to answer the assessment in

page 11 refer to your module and write

the letters only

moving on to week 3 lesson six

focusing on the discussion about

energy resources so male 3.2

describe how oral minerals are found

mine and process for human use

[Music]

so or minerals how are they found mined

and processed for human use that is our

focus for today that's the question that

we have to answer

so

first let's define what or mineral is so

an ore is a natural occurrence of rock

or sediment which contains enough

minerals with economically important

elements typically the metals that can

be extracted from the deposit economy

the ores are instructed by mining for a

profit that the earth they are then

refined and then in order to extract the

valuable elements from here so based

from

the description here

orange minerals are actually processed

they are extracted first and then yeah

by the process of mining and then after

that they're refined and become valuable

elements

there are two methods

of mining

four minerals the first one is the

surface mining

surface mining is used to extract ore

minerals near the surface of the earth

from the term surface so

they don't need to

dig deeper and make some

really um

deep holes in order to extract these

minerals so they are just found in the

surface or on the surface of the earth

and the soil and rocks that are covered

the oars are removed through blasting so

they use this blasting in order to

remove the

um unwanted parts of the rocks and for

them to get the ore mineral from it and

next one is underground mining

underground mining is very common also

here in our country in the philippines

so they use this type of mining to

extract the rocks the minerals and other

precious

stones that are hidden underneath the

surface of the earth

they want to dig deeper and discover

more

what's in there

so in underground mining miners need to

create a panel

that is why

so

when there are some like earthquakes

it's very dangerous for them because

these people are working inside the

tunnel and

when earthquake comes it means that

they are really in danger inside

so they can reach ore minerals by

digging like tunnels and this kind of

mining is more expensive yeah and as

mentioned very dangerous compared to

surface planet

so because miners need to use explosive

devices also at the same time to remove

the minerals from

the rocks that cover them so they use

these explosive devices to break rocks

big

[Music]

these are the different

ways on how to do

mining

of ore minerals so the open pip mining

so as you can see here

they are not too deep and this is the

most common type of surface mining

because it's just surface mining they

don't create

big holes or deep holes here open pin

means a big hole or pit in the ground

and the pit in mind is created by

blasting

the use of explosive and sometimes

draining so they used to mine gravel and

sand and even rocks here

and the next one is strip mining as you

can see in the picture that is how strip

mining is done

and it involves the removal of a thin

strip of overburdened earther soil about

above a desired deposit so dumping the

remove overburden behind a deposit and

they extract the desired deposit

creating a second parallel strip in the

same manner and it goes on and on and

depositing the waste materials from the

second strip onto the first strip and

of course this method is used for coal

you know phosphates net enclaves and tar

so it's common to

mining coal phosphate place and

the third one is dredging so yeah they

use this

type of material

and which actually submerged into

the body of water and then down to the

bottom of it including the rivers the

legs and below

that's also direction because underneath

these bodies of water they could find

also some rocks and extract some ore in

them

[Music]

now the primary steps involved in

processing minerals so let's do the

step-by-step process in doing this

the first one is sampling sampling is

the removal of a portion which

represents a hole needed for the

analysis of the material

so it's just like you want to choose now

you remove a portion of the rock in

order for you to choose which one could

be used in

getting the

important minerals or components the

next one is analysis

it is important to evaluate the valuable

component in an ore it includes

mineral or particle size analysis so you

have to look at the chemical component

of that rock then the minerals present

and also the size of it

then the combination so this is the

process where the value components of

the ore are separated through crushing

and grinding

and pounding and this process begins by

crushing the oars to a particular size

and finishes finishes it by grinding the

oars into a powder form you know the ore

here is already pounded

and become powdered

then the concentration

concentration means the separation of

valuable minerals from the room

that's the time that you separate

already the important components of

the important minerals and those that

are that are considered as raw it's

really not

not so useful and number five the

watering when you say the watering uses

the concentration to convert

this one in usable mineral so

there is a process wherein

um

the one the valuable minerals taken

could still be reused

i mean convert into usable minerals and

these involve filtration sedimentation

already of the suspension and drying it

the soil materials are vested from the

suspension so there is like a three

procedure here first one is

filtrate to trade the valuable minerals

that you

that they have separated and then there

is sedimentation and of course

suspension and drying trying

to become

our reflection here this week i want to

leave this question to you how can you

help in preservation of our

or minerals or mineral resources

now as a student as a grade 11 student

think of a way on how

you contribute to the preservation of

our mineral resources

and leaving you this code of the day the

real wealth of a nation lies in a

resources of earth soil the water the

forest the minerals and one's life to

utilize them

for present needs while ensuring their

preservation for future generations

requires a delicately balanced and

continuing program based on the most

extensive research

so their administration is not properly

and cannot be a matter of qualities so

let us all remember that what we do to

our resources today

will always be beneficial to the future

generation so for them not to suffer and

to be out of

this earthly resources that could be

helpful in

continuing life let us all help one

another

in order for us to preserve these

wonderful resources that we have around

us once again this is your teacher in

earth science 11 i would like to thank

you for watching this video and i hope

you don't forget to

like and subscribe and comment your name

below in this video so i could check who

were able to watch our

learning episode for this week so i hope

you are doing your best in all the

outputs that you are making and continue

doing great

and

please be honest in answering your

modules so

getting an answer key is not that

helpful but answering them yourself

would really be beneficial because

learning is still more important than

your score so i'll see you all in our

next learning video have a nice day

everyone