SCHOOL
Ceriaco A. Abes MNHS
TEACHER
XYRA LOUIESE M. VILLAMARIN
TEACHING
DATE & TIME
I. OBJECTIVES
B. Performance
Standards
C. Learning
Competencies/ Objectives
Write the LC code for
each
4. Additional
Materials from Learning
Resource (LR) portal
5. Other Learning
Materials
6.Integration
IV.
PROCEDURES
Aquamarine
9:30-10:30
QUARTER
Grade 7
SCIENCE
4th Grading
The learner demonstrates an understanding of…
The different phenomena that occur in the atmosphere.
The learners shall be able to...
Analyze the advantage of the location of the Philippines in relation to climate,
weather, and seasons.
A. Content Standards
II. CONTENT
III. LEARNING
RESOURCES
A. References
1. Teacher’s Guide
pages
2. Learner’s Materials
pages
3. Textbook pages
May 29,
2023
GRADE
LEVEL
LEARNING
AREA
Discuss how energy from the Sun interacts with the layers of the atmosphere.
S7ES-IVd-5;
At the end of the lesson, students should be able to:
1. Describe the layers of the Earth’s atmosphere;
2. Perform varied activities about the layer of Earth’s atmosphere; and
3. Reflect how important are layers of the atmosphere for the existence of life
on Earth.
Unit 4: Layers of the Atmosphere
SLM in Science 7 Quarter 4: Module 4 pages 23-29
Science Learner’s Materials 7 pages 309-313
https://creazilla.com/nodes/3172368-egg-clipart
https://pngtree.com/freepng/slice-of-cake-vector-illustration-isolated-on
https://www.istockphoto.com/illustrations/onion-half
https://www.legendsoflearning.com/wp-content/uploads/2020/04/EarthsAtmosphere.pdf
-white-background-cake-clip-art_5067268.html
https://www.vectorstock.com/royalty-free-vector/layers-of-soil-vector22989641
PowerPoint presentation, Laptop, Pictures, Activity Sheets
English, Mathematics, Edukasyon sa Pagpapakatao
7Es
Teacher’s Activity
Students Response
Daily Routine
1. Opening Prayer
Let us start our lesson for today with
a prayer. Class, please stand and let
us pray.
Mr/Ms. ________, please lead the
prayer.
2. Greetings
Good morning, class!
(Let us bow our heads and feel
the presence of our Almighty
God. In the name of the Father,
of the Son and of the Holy Spirit.
Amen.)
Good morning, Ma’am! Good
morning, visitors! Welcome to
Grade 7 Aquamarine!
3. Classroom Management
Before you take your seats, kindly
arrange your chairs properly and
check if there are any pieces of trash
around you. Please properly dispose
it inside the trash can to maintain
classroom cleanliness.
Please be seated.
(The students will properly
arrange their seats and dispose
any pieces of trash they may
find).
Thank you, Ma’am!
4. Checking of Attendance
Ms. Secretary, who are absents
today?
Very Good! That’s good to know,
class. Since everybody is present
today give yourselves a “Mommy
Dionisia Clap”.
All are present, Ma’am.
1, 2, 3 … 1, 2, 3… Very Good Very
Good Very Good!
5. Classroom rules
Before we proceed to our lesson, let
us have our classroom rules.
Everybody kindly read.
Classroom Rules
(The students will read the
classroom rules)
1. L- isten when someone is
speaking.
2. O- bserve Cleanliness.
3. U-nnecessary noise is not
allowed.
4. I-f you want to answer just
raise your hand.
5. E-yes on the board or
screen.
6. S-tand when you are
answering or reading.
7. E-njoy and participate
actively in class activities
Did you understand our rules?
Yes, Ma’am!
Are our rules clear?
Yes, Ma’am!
6. Checking of Assignment
Class, do we have an assignment?
A. Reviewing
previous lesson or
Elicit:
Recall/Review
None, Ma’am!
presenting the
new lesson
(The activities
in this section
will evoke or
draw out
prior concepts
or prior
experiences
from the
students)
Before we begin our new lesson, let’s
have a quick review of our lesson
last Friday through an activity.
Activity 1
Paper Ball Game!
I have here a crumpled paper ball, (The students will listen to the
consist of different layers. Each instructions)
layer has a corresponding question.
I’ll give the paper ball to a particular
student. I will play a music and
when the music stops, the student
that have the paper ball will open
the first layer and answer the given
question. Afterwards, he/she will
pass the paper ball to other students
and when the music stops the next
student will open and answer the
given question until you open and
answer the last layer.
Do you have any question?
None, Ma’am!
Can we now proceed to our activity? Yes, Ma’am!
Ready? 1…2…3…go…
(The teacher will give the paper ball
to a particular student.)
Question No.1
1. What do you call to a mixture of
gases and particles that surround a
planet, held by gravity?
(The student will read and
answer the question.)
Yes, ___?
Ma’am, Atmosphere!
i.
Alright, Very Good _____. Let’s
give_____ 5 claps.
(1, 2, 3, 4, 5 claps)
Question No. 2
2. What is the most abundant gas in (The student will read and
the Earth’s atmosphere and is answer the question.)
essential for all living things to
grow?
Yes, ___?
Ma’am, Nitrogen!
That is correct! Let’s give____ 5
claps also.
(1, 2, 3, 4, 5 claps)
Last one question.
Question No.3
3. Can you give at least one trace (The student will read and
gases that is present in the Earth’s answer the question.)
atmosphere
Yes, ___?
Very good! Let’s give____ 5 claps.
Ma’am, Carbon Dioxide!
(1, 2, 3, 4, 5 claps)
Good job, class. I am beyond happy
that you learned something from
our past lesson.
Did you enjoy the activity?
B. Establishing a
purpose for the
lesson
Yes, Ma’am!
Let us proceed to another activity
entitled:
Activity 2
PICTURES ASSEMBLE!
I will group you into four groups.
This column will be the group 1 and
this column will be the group 2. 3,
and 4. I have here some puzzle
pieces, all you have to do is to
arrange the puzzles accordingly to
form a picture and once you are
done choose a representative from
your group to paste the correct
picture on the board. The first group
to finish will win and receive a prize.
Engage:
(The activities
in this section
will stimulate
their thinking
and help them
access and
connect prior
knowledge as
a jumpstart to
the present
lesson)
C. Presenting
examples/instanc
es of the new
lesson
Is it clear?
Yes, Ma’am!
Do you have some questions about
our activity?
None, Ma’am!
If that’s the case, you may start to
assemble the pictures.
1, 2, 3 go!
Group 1
Group 2
(The students will start the
activity)
(The students will post their
activity on the board)
Group 3
Group 4
Alright, Group___ is our winner.
Let’s give them Winner clap.
1, 2, 3… 1, 2, 3 WINNER
Okay, Group 1 what picture did you Ma’am, the picture that we
formed?
formed is onion.
How about the Group 2, what
picture did you formed?
Ma’am, the picture that we
formed is a piece of cake.
Okay, Group 3 what picture did you
formed?
Ma’am, the picture that we
formed is a soil.
Next, Group 4 what picture did you Ma’am, the picture that we
formed?
formed is an egg.
Okay class, analyze and observe the
4 pictures that you assembled.
What do they have in common?
(The students will raise their
hands)
Yes, _____?
Ma’am, they all have layers.
That is correct! Please give _____
a Wow Galing Clap!
Wow galing, wow wow galing
galing (3x)
As you can observed on these 4
pictures, they all have layers.
Like for example this soil has its
layers and these layers has its
functions and characteristics. Just
like our atmosphere that has
different layers.
Did you know that our atmosphere
has its own layers also?
_____, Ma’am!
Okay, today we will find out and
explore each layer of the Earth’s
atmosphere.
Are you ready to explore and travel? Aba, syempre po!
So, class if you are ready fasten your
seatbelt, open your mind, eyes and
ears to capture, focus to learn and
enjoy the trip.
But wait, I have question to all of
you again, what should a good
student do during the activities and
discussion.
Keep in mind the LOUIESE
RULES!
Can I expect that from you?
Yes, Ma’am!
For us to be guided in our lesson let
me present to you our learning
objectives.
(Teacher will post the learning
objectives.)
At the end of the lesson, the
students should be able to:
1. Describe the layers of the
Earth’s atmosphere;
2. Perform varied activities
about the layer of Earth’s
atmosphere; and
3. Reflect how important are
layers of the atmosphere for
the existence of life on Earth.
D. Discussing
new concepts and
practicing new
skills #1
Explore:
(In this
section,
The first column read the first
objectives.
(Reads the objectives in chorus)
Second column for the second
objectives.
(Reads the objectives in chorus)
Altogether for the third objectives.
(Reads the objectives in chorus)
Today we will explore the 5 layers of
the earth’s atmosphere.
students will
be given time
to think, plan,
investigate,
and organize
collected
information;
or the
performance
of the
planned/prep
ared activities
from the
students’
manual with
data
gathering
with Guide
Questions)
(The teacher will present or post the
instructional materials)
The temperature profile of the (The students will listen to the
atmosphere is the basis for dividing teacher)
the atmosphere into several layers.
Each layer has its own distinct
characteristics. Let us find out more
about them through a small group
discussion.
But first let us unlock some
vocabulary words.
Do you know what is meant by
altitude?
Altitude is the vertical elevation of
an object above a surface (such as
sea level or land) of a planet or
natural satellite.
How about temperature?
Temperature is the measurement of
hotness or coldness of a body or
material.
E. Discussing new
concepts and
practicing new
skills #2
___, Ma’am!
To deepen your understanding
about the layers of the atmosphere
we will have our next activity
entitled:
Activity 3
Small Group Discussion!
I will group you into four groups.
This column will be the group 1, this
will be the group 2, group 3, and
group 4. In your own group discuss
the layers of the atmosphere and
answer the guide questions. I will
give you 5 minutes to discuss each
layer and its characteristics. After
the small group discussion, you will
paste the correct answer about each
layer during the question-andanswer portion regarding to the
information about the layers of the
atmosphere that I gave on your
groups. For every correct answer
there is an equivalent point.
The leaders will be the one to
communicate and discuss each layer
of the atmosphere with his/her
groupmates.
For Group 1 the leader will be____.
For Group 2 the leader will be____.
For Group 3 the leader will be____.
For Group 4 the leader will be____.
___, Ma’am!
(The teacher will give the strips of
paper to each group that includes
the information about the layers of
the atmosphere.)
Did you understand our activity?
Yes, Ma’am!
Do you have some questions?
Clarifications?
None, Ma’am!
If none, you can go to your (The students will go to their
respected groups quietly and form a respected groups.)
circle to start to discuss the 5 layers
of the atmosphere.
(The students will start the small
group discussion.)
Times up!
(The teacher will start to ask
questions.)
Guide Questions:
1. What are the five layers of the
atmosphere from (top to
bottom)? (5 points)
Yes, Group__?
(The students will paste the 5
layers of the atmosphere on the
blank illustration.)
Ma’am, the 5 layers of the
atmosphere are Troposphere,
Stratosphere,
Mesosphere,
Thermosphere, and Exosphere.
That is correct!
(The students will paste the
or altitude of Mesosphere? (5 estimated distance of the
mesosphere on the blank
points)
illustration.)
2. What is the estimated distance
Yes, Group__?
Very good!
3. In which of the layer would you
found the ozone? (5 points)
Yes, Group__?
That is correct!
(The teacher will give additional
information about the topic.)
Ma’am, the estimated distance or
altitude of Mesosphere is 50- 90
km above the earth.
(The students will paste the
ozone in the Stratosphere on the
blank illustration.)
Ma’am, we will find ozone in the
Stratosphere.
4. What
is
the
estimated
temperature of Troposphere?
(5 points)
Yes, Group____?
(The students will paste the
temperature of the Troposphere
in the on the blank illustration.)
Ma’am,
the
estimated
temperature of Troposphere
drops from 6.5°C to -51°C.
Very good!
(The teacher will give additional
information about the topic.)
Did you already know the 5 layers of
the
atmosphere
and
its
characteristics?
Do you want to understand and
remember easily the 5 layers of
atmosphere?
Yes, Ma’am!
Yes, Ma’am!
Okay, I will teach you a simple song.
I will demonstrate first and then you
we will do it next. Understood?
Troposphere… Troposphere…
Stratosphere… Stratosphere…
Mesosphere… Thermosphere…
Mesosphere... Thermosphere…
Exosphere… Exosphere…
Did you follow?
(The students will listen to the
song.)
Yes, Ma’am!
Alright, please stand, altogether!
1, 2, 3 go!
Troposphere… Troposphere…
Stratosphere… Stratosphere…
Mesosphere… Thermosphere…
Mesosphere... Thermosphere…
Exosphere… Exosphere…
Very good! If you want to easily
remember the 5 layers of the
atmosphere just sing this song,
okay?
Troposphere… Troposphere…
Stratosphere…Stratosphere…
Mesosphere…Thermosphere…
Mesosphere... Thermosphere…
Exosphere… Exosphere…
Yes, Ma’am!
At this point, we will have another
activity.
Group Activity
Direction: Each group will analyze (The students will listen to the
each characteristic of the 5 layers of instructions.)
the atmosphere and paste the
correct
information
corresponding layer.
to
the
(The teacher will explain the task of
each group.)
Group 1: What is my Altitude?
Direction: Analyze the altitudes of
each layer and paste the correct
altitude to the 5 layers of the
atmosphere.
Group 2: What is my
Temperature?
Direction: Study the temperatures
of each layer and paste the correct
temperature to the 5 layers of the
atmosphere.
Group 3: What are my
Events?
Direction: Examine the events and
phenomena happening in each layer
and paste the correct information
that corresponds to 5 layers of the
atmosphere.
Group 4: How about my
Altitude and Temperature?
Direction: Analyze the altitude and
temperature of each layer and
describe the relationship between
altitude and temperature of each
layer.
I have here the envelope for each
group that contains the guide
questions that you need to answer
and also the materials needed for
your activity.
Also, you will be graded using the
rubrics.
(See attached rubrics)
I will give you 10 minutes to finish
your task and 3 minutes for your
presentation. In your groups,
choose 2 representatives to present
your task. Also, write the roles of
every member on a ¼ sheet of paper
and give it to me when you will
present your tasks.
Is that clear?
Yes, Ma’am!
Do you have some questions about
our activity?
None, Ma’am!
Group 1 please stand. Who will be
the leader of your group?
Okay, ___ will be the leader. Kindly
go here in front to get your materials
and you may proceed here in the
right corner.
____, Ma’am!
Next, Group 2 please stand. Who
will be the leader of your group?
Okay, ___ will be the leader. Kindly
go here in front to get your materials
And you may proceed here in the
left corner.
____, Ma’am!
Group 3 please stand. Who will be
the leader of your group?
Okay, ___ will be the leader. Kindly
go here in front to get your materials
and you may proceed at the back.
____, Ma’am!
Next, Group 4 please stand. Who
will be the leader of your group?
Okay, ___ will be the leader. Kindly
go here in front to get your materials
and you may proceed also at the
back.
____, Ma’am!
Okay, please sit down in your
respected place and you may start
the activity.
F. Developing
mastery (leads to
Formative
Assessment 3)
Explain:
(In this
section,
students will
be involved in
an analysis of
their
exploration.
Their
understandin
g is clarified
and modified
because of
reflective
activities)/An
alysis of the
gathered data
and results
(The teacher will facilitate the
group activity)
Presentation of Output
(The students will be busy doing
their activity.)
A. Group Activity
Group 1- What is my
Altitude?
Guide Questions:
1. What is the estimated altitude
of Mesosphere?
2. In which layer has the highest
altitude?
3. Why is the Troposphere having
the lowest altitude?
1. The estimated altitude of the
Mesosphere is 50 km to 90 km.
2. The layer that has the highest
altitude is the Exosphere
3. Troposphere have the lowest
altitude because it is the nearest
layer to the earth having an
estimated altitude of 8-14.5 km.
and be able to
answer the
Guide
Questions
leading to the
focus concept
or topic for
the day.
Group 2- What is my
Temperature?
Guide Questions:
1. Which of the following layer is
considered as the coldest layer
2. In which layer has the highest
temperature?
3. Why does the temperature in the
Mesosphere becomes very low?
1. The layer that is considered as
the coldest layer is the
Mesosphere.
2. The layer that has the highest
temperature is the Exosphere
3. The temperature in the
mesosphere becomes very low
because there is a small amount
of ozone present on it.
Group 3- What are my Events?
Guide Questions:
1. In which layer of the earth’s
atmosphere does meteoroids burn
up?
2. Why do you think clouds are
generally observed to form only in
the troposphere?
3. Why does the Aurora borealis and
Aurora Australis occur only in the
Thermosphere?
Group 4- How about my
Altitude and Temperature
Guide Questions:
1. What happens to the temperature
as you go higher in the troposphere?
2. In which layer is temperature
increasing with increasing altitude?
3. Why does the temperature in the
Mesosphere decreases as the
altitude increases?
B. Rubrics for the Group
Presentation
(The students will be graded using
the rubrics)
1. Meteoroids burn up in the
Mesosphere
2. Clouds are generally observed
to form only in the troposphere
because almost all of the
atmosphere's water is found in
this layer.
3.
It
occurs
only
in
Thermosphere because this layer
has a thin air and Auroras occur
when charged particles collide
with gases in Earth's upper
atmosphere. Those collisions
produce tiny flashes that fill the
sky with colorful light.
1. As you go higher in the
Troposphere the temperature
decreases.
2. The layers that has increases
temperature as the altitude
increases are the Stratosphere,
Thermosphere, and Exosphere.
3. The reason why the
temperature in the Mesosphere
decreases
as
the
altitude
increases is all because there is a
little amount of ozone present in
Mesosphere.
Who are the representatives of
Group 1?
You may now present your output.
(The Group 1 representatives will
present their output).
Very good, Group 1. Let us give
group 1 a “perfect clap” 1. 2.. 3.. go.
(Students will do the perfect
clap)
So, any question about
presentation of the group 1?
(One or two student(s) may ask
question)
the
Yes ____?
(The teacher will give additional
information)
Can we now proceed to Group 2?
Group 2 you may now
presenting your output.
start
(The Group 2 representative will
present their output.)
Very Good, Group 2. You clearly
describe the temperature of each
layer.
Let us give Group 2 “ang galing
clap” 1...2...3… go...
So, any question about
presentation of the Group 2?
(Students will do the ang galing
clap)
the (One student from other group
may ask question)
(The teacher will give additional
information)
Next, Group 3 you may now present
your work.
(The Group 3 representative will
present their output.)
Let us give Group 3 a “Wow galing (Students will do the wow galing
clap)
clap” 1...2...3...go...
So, any question about
presentation of the group 3?
the
(One student from other group
may ask question)
(The teacher will give additional
information)
Let us proceed to Group 4
(The Group 4 representative will
present their output.)
Thank you, Group 4. Let’s give them (The students will clap 5 times)
5 claps
So, any question about
presentation of the group 4?
the
(One student from other group
may ask question)
Very Good, class! It seems that you
understand the 5 layers of the
atmosphere and because of that give
yourselves a good job clap.
G O O D J O B… Good Job... Good
Job (3x)
Do you have some questions about
our lesson? Any clarifications?
Applications
I have here a set of questions that
may rate your understanding of the
lesson today.
None, Ma’am!
(The teacher will give additional
information)
Okay group 1 got a score of ___.
Group 2 got___.
Group 3 got___.
Group 4 got___.
G. Finding
practical
applications of
concepts and
skills in daily
living
H. Generalizing
and abstractions
about the lesson
Elaborate:
(This section
will give
students the
opportunity
to expand and
solidify/concr
etize their
understandin
g of the
concept
and/or apply
it to a realworld
situation)
Do you think the layers of the
atmosphere are important in our
life? Why?
(The students will raise their
hands)
Yes, ___?
Yes,
Ma’am
because
the
atmosphere protect light on
earth by shielding it from
incoming ultra-violate radiation,
keeping the planet through
insulation,
and
preventing
extreme temperatures between
day and night.
Very good! Let’s give ____ a wow
galing clap!
Wow galing, wow wow galing
galing (3x)
What would happen
atmosphere disappeared?
(The students will raise their
hands.)
if
the
Yes, _____?
Very well said! Let’s give ____ 5
claps
Ma’am, if the atmosphere would
disappear, life on earth would be
impossible.
1, 2, 3, 4, 5 claps
Generalizations
What are the 5 layers of the
atmosphere (from bottom to top)?
Yes, _____?
(Th students will raise their
hands)
Very well said! Let’s give _____ five
claps.
(1, 2, 3, 4, 5 claps)
Ma’am, the 5 layers of the
atmosphere namely bottom to
top: Troposphere, Stratosphere,
Mesosphere, Thermosphere, and
Exosphere.
In which layer of the atmosphere (Students raise their hands)
would you find meteors and rock
fragments?
Anyone? Yes, ___?
Ma’am, in the Mesosphere.
Very well said! Let’s give _____ five
claps also!
(1, 2, 3, 4, 5 claps)
Next, in which layers would you find
satellites and it is the upper limit of
our atmosphere?
Yes, ____?
Ma’am, in the Exosphere.
Very good! Let’s give _____ five
claps also!
(1, 2, 3, 4, 5 claps)
Any questions? Clarifications about
our lesson?
None, Ma’am,
To determine if you understand the
5 layers of the Earth’s atmosphere,
let’s have a Status check.
Do a smiley face if you understand
the topic and do a sad face if you
don’t understand.
Okay, let’s see what will be your (The students will show their
faces.)
expression.
Okay, all of you are smiling and it
only indicates that everyone
understands our lesson about the 5
layers of the atmosphere.
Evaluation:
(This section
will provide
opportunities
for concept
check test
items and
answer key
which are
aligned to the
learning
objectives –
content and
performance
standards and
address
misconceptio
ns- if any)
I. Evaluating
learning
Since you already know what are the
5 layers of the atmosphere, I want to
assure if all of you understand what
we tackled about earlier.
(The teacher will administer a 5item quiz.)
Direction: Choose the letter of the
correct answer.
1. What layer of the atmosphere
where humans live and weather
activity also occur in this layer?
A. Stratosphere
B. Thermosphere
C. Troposphere
D. Mesosphere
2. Why does the Mesosphere is
considered as the coldest layer?
A. Because it has high altitude
B. Because it has low altitude
C. Because the amount of
ozone in the mesosphere is
very small.
D. Because the amount of
ozone in the mesosphere is
very high.
3. Which of the following is seen in
the Thermosphere?
A. Airplanes
B. Aurora
C. Ozone layer
D. Clouds
4. Would it be better if meteors
can freely enter the Earth’s
surface?
A. No, because it affects our
ozone layer.
B. No, because it may lead to
destruction of lives.
C. Yes, because meteors cause
no harm at all.
D. Yes, because meteors are of
great importance to the
Earth’s surface
5. What is the estimated
temperature of the
Stratosphere?
A. -51℃ to -25℃
B. -90℃
C. 1000 ℃
(The students will answer the 5item quiz)
D. 1700 ℃
Are you done?
Yes Ma’am!
Let us check your answers.
Exchange your papers to your
seatmate.
What’s the answer for number
1...2…3…4...5?
Very good, class! Give yourselves a
Good Job clap.
J. Additional
activities for
application or
remediation
C
C
D
B
A
(The students who got perfect
scores will raise their hands)
Who got perfect scores?
Extend:
(This section
gives situation
that explains
the topic in a
new context,
or integrate it
to another
discipline/soc
ietal concern)
1.
2.
3.
4.
5.
Please, pass your papers forward.
Assignment!
G O O D J O B… Good Job... Good
Job (3x)
(The students will pass their
papers forward.)
For your assignment everybody
please copy.
(The teacher
assignment.)
will
post
the
(The student will copy their
assignment.)
Direction: On a bond paper, draw
and color the five layers of the earth
including the events happening or
things that may found on each layer.
Are you all done copying your
assignment?
Yes Ma’am.
Everybody, please stand.
Before we end our class, kindly
clean your own space and pick up
the pieces of paper under your
chairs if there are any.
That’s all for today
Goodbye class! Thank you for your
active participation today. God bless
you all!!
V. REMARKS
VI. REFLECTION
Goodbye Ma’am! Thank you for
teaching us.
A. No. of learners who
earned 80% in the
evaluation
B. No. of learners who
require additional
activities for
remediation
C. Did the remedial
lessons work? No. of
learners who have
caught up with the
lesson
D. No. of learners who
continue to require
remediation
E. Which of my teaching
strategies worked well?
Why did these works?
F. What difficulties did I
encounter which my
principal or supervisor
can help me solve?
G. What innovation or
localized materials did I
use/discover which I
wish to share with other
teachers?
Prepared by:
XYRA LOUIESE M. VILLAMARIN
Pre-Service Teacher
Checked by:
MA. DAISY B. LUZON
Cooperating teacher
Noted by:
MARTINIANO D. BUISING
Principal I
Small Group Discussion
A.
Troposphere
It starts at the Earth’s surface and extends 8 km to 14.5 km high. About
75 % of the gases in the atmosphere can be found in this layer. As altitude
increases, the temperature in the troposphere decreases. The main reason
why temperature decreases with altitude in the troposphere is that it is
heated from below. The estimated temperature decreases 6.5 to -60℃. This
is where our weather and climate take place, because almost all of the
atmosphere's water is found in this layer.
B. Stratosphere
The estimated distance from the ground is 50 km and the
temperature increases from an average -51℃ to -25℃. In this layer,
temperature increases as the altitude increases. This is due to the ozone
layer that is found in the stratosphere. The ozone layer is found here that
filters the Sun’s UV rays to allow life to survive on Earth. Jets fly in this
layer to help to avoid turbulence of weather.
C.
Mesosphere (middle)
50-90 km in height. In this layer, temperature decreases as altitude
increases. It has no gases which can absorb UV rays from the sun. It is the
coldest layer in the atmosphere with extreme temperatures as low as -90℃.
Also has a thin layer of air which is still enough to decelerate meteors
rushing towards Earth. This thin layer of air adds friction to meteoroids
which becomes meteors producing a burning tail and seen as shooting
stars.
D. Thermosphere (ionosphere)
The estimated distance is 690 km and the temperature can go beyond
1,000 ℃. This increase in temperature is due to the absorption of intense
solar radiation by the limited number of remaining molecular oxygen. A
remarkable feature that is happening in this layer is the occurrence of
Auroras. Auroras occur when charged particles collide with gases in
Earth's upper atmosphere. Those collisions produce tiny flashes that fill
the sky with colorful light. An Aurora is a display of glows in the night sky
within the polar areas. The auroras (Aurora borealis in the North and Aurora australis in the
South.)
E.
Exosphere
The outermost layer of the atmosphere. It is more than 10, 000 km from
the surface. The temperature can go beyond 1700 ℃. In this layer,
temperature increases as altitude increases. To its nature, the air here is very
thin. Satellites are stationed in this area.